feat(API): add auto-generated API documentation

The API documentation is auto generated with docfx and converted to
markdown via turndown in a custom nodejs script.

.gitignore

@@ -1,6 +1,7 @@
 [Ll]ibrary/
 [Tt]emp/
 [Oo]bj/
+[Oo]bj.meta
 [Bb]uild/
 [Bb]uilds/
 [Ll]ogs/
@@ -32,4 +33,4 @@ ExportedObj/
 
 # System files
 .DS_Store
-*.swp
+*.swp

Documentation/API/Interactables/Event/Proxy/InteractableFacadeEventProxyEmitter.UnityEvent.md

@@ -0,0 +1,19 @@
+# Class InteractableFacadeEventProxyEmitter.UnityEvent
+
+Defines the event with the specified state.
+
+##### Inheritance
+
+* System.Object
+* InteractableFacadeEventProxyEmitter.UnityEvent
+
+###### **Namespace**: [Tilia.Interactions.Interactables.Interactables.Event.Proxy]
+
+##### Syntax
+
+```
+[Serializable]
+public class UnityEvent : InteractableFacadeEventProxyEmitter.UnityEvent<InteractableFacade>
+```
+
+[Tilia.Interactions.Interactables.Interactables.Event.Proxy]: README.md

Documentation/API/Interactables/Event/Proxy/InteractableFacadeEventProxyEmitter.md

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+# Class InteractableFacadeEventProxyEmitter
+
+Emits a UnityEvent with an [InteractableFacade] payload whenever the Receive method is called.
+
+## Contents
+
+* [Inheritance]
+* [Namespace]
+* [Syntax]
+* [Methods]
+  * [GetTargetToCheck()]
+
+## Details
+
+##### Inheritance
+
+* System.Object
+* InteractableFacadeEventProxyEmitter
+
+##### Namespace
+
+* [Tilia.Interactions.Interactables.Interactables.Event.Proxy]
+
+##### Syntax
+
+```
+public class InteractableFacadeEventProxyEmitter : RestrictableSingleEventProxyEmitter<InteractableFacade, InteractableFacadeEventProxyEmitter.UnityEvent>
+```
+
+### Methods
+
+#### GetTargetToCheck()
+
+##### Declaration
+
+```
+protected override object GetTargetToCheck()
+```
+
+##### Returns
+
+| Type | Description |
+| --- | --- |
+| System.Object | n/a |
+
+[InteractableFacade]: ../../../Interactables/InteractableFacade.md
+[Tilia.Interactions.Interactables.Interactables.Event.Proxy]: README.md
+[Inheritance]: #Inheritance
+[Namespace]: #Namespace
+[Syntax]: #Syntax
+[Methods]: #Methods
+[GetTargetToCheck()]: #GetTargetToCheck

Documentation/API/Interactables/Event/Proxy/README.md

@@ -0,0 +1,15 @@
+# Namespace Tilia.Interactions.Interactables.Interactables.Event.Proxy
+
+### Classes
+
+#### [InteractableFacadeEventProxyEmitter]
+
+Emits a UnityEvent with an [InteractableFacade] payload whenever the Receive method is called.
+
+#### [InteractableFacadeEventProxyEmitter.UnityEvent]
+
+Defines the event with the specified state.
+
+[InteractableFacadeEventProxyEmitter]: InteractableFacadeEventProxyEmitter.md
+[InteractableFacade]: ../../../Interactables/InteractableFacade.md
+[InteractableFacadeEventProxyEmitter.UnityEvent]: InteractableFacadeEventProxyEmitter.UnityEvent.md

Documentation/API/Interactables/Grab/Action/GrabInteractableAction.md

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+# Class GrabInteractableAction
+
+Describes an action to perform when a Grab Process is executed.
+
+## Contents
+
+* [Inheritance]
+* [Namespace]
+* [Syntax]
+* [Properties]
+  * [GrabSetup]
+  * [InputActiveCollisionConsumer]
+  * [InputGrabReceived]
+  * [InputGrabSetup]
+  * [InputUngrabReceived]
+  * [InputUngrabReset]
+* [Methods]
+  * [NotifyGrab(GameObject)]
+  * [NotifyUngrab(GameObject)]
+  * [OnAfterGrabSetupChange()]
+
+## Details
+
+##### Inheritance
+
+* System.Object
+* GrabInteractableAction
+* [GrabInteractableControlDirectionAction]
+* [GrabInteractableFollowAction]
+* [GrabInteractableScaleAction]
+* [GrabInteractableSwapAction]
+
+##### Namespace
+
+* [Tilia.Interactions.Interactables.Interactables.Grab.Action]
+
+##### Syntax
+
+```
+public class GrabInteractableAction : MonoBehaviour
+```
+
+### Properties
+
+#### GrabSetup
+
+The internal setup for the grab action.
+
+##### Declaration
+
+```
+public GrabInteractableConfigurator GrabSetup { get; set; }
+```
+
+#### InputActiveCollisionConsumer
+
+The input ActiveCollisionConsumerEventProxyEmitter for the grab action.
+
+##### Declaration
+
+```
+public ActiveCollisionConsumerEventProxyEmitter InputActiveCollisionConsumer { get; protected set; }
+```
+
+#### InputGrabReceived
+
+The input GameObjectEventProxyEmitter for the grab action.
+
+##### Declaration
+
+```
+public GameObjectEventProxyEmitter InputGrabReceived { get; protected set; }
+```
+
+#### InputGrabSetup
+
+The input GameObjectEventProxyEmitter for any pre setup on grab.
+
+##### Declaration
+
+```
+public GameObjectEventProxyEmitter InputGrabSetup { get; protected set; }
+```
+
+#### InputUngrabReceived
+
+The input GameObjectEventProxyEmitter for the grab action.
+
+##### Declaration
+
+```
+public GameObjectEventProxyEmitter InputUngrabReceived { get; protected set; }
+```
+
+#### InputUngrabReset
+
+The input GameObjectEventProxyEmitter for any post reset on ungrab.
+
+##### Declaration
+
+```
+public GameObjectEventProxyEmitter InputUngrabReset { get; protected set; }
+```
+
+### Methods
+
+#### NotifyGrab(GameObject)
+
+Notifies that the Interactable is being grabbed.
+
+##### Declaration
+
+```
+public virtual void NotifyGrab(GameObject data)
+```
+
+##### Parameters
+
+| Type | Name | Description |
+| --- | --- | --- |
+| GameObject | data | The grabbing object. |
+
+#### NotifyUngrab(GameObject)
+
+Notifies that the Interactable is no longer being grabbed.
+
+##### Declaration
+
+```
+public virtual void NotifyUngrab(GameObject data)
+```
+
+##### Parameters
+
+| Type | Name | Description |
+| --- | --- | --- |
+| GameObject | data | The previous grabbing object. |
+
+#### OnAfterGrabSetupChange()
+
+Called after [GrabSetup] has been changed.
+
+##### Declaration
+
+```
+protected virtual void OnAfterGrabSetupChange()
+```
+
+[GrabInteractableControlDirectionAction]: GrabInteractableControlDirectionAction.md
+[GrabInteractableFollowAction]: GrabInteractableFollowAction.md
+[GrabInteractableScaleAction]: GrabInteractableScaleAction.md
+[GrabInteractableSwapAction]: GrabInteractableSwapAction.md
+[Tilia.Interactions.Interactables.Interactables.Grab.Action]: README.md
+[GrabInteractableConfigurator]: ../../../Interactables/Grab/GrabInteractableConfigurator.md
+[GrabSetup]: GrabInteractableAction.md#GrabSetup
+[Inheritance]: #Inheritance
+[Namespace]: #Namespace
+[Syntax]: #Syntax
+[Properties]: #Properties
+[GrabSetup]: #GrabSetup
+[InputActiveCollisionConsumer]: #InputActiveCollisionConsumer
+[InputGrabReceived]: #InputGrabReceived
+[InputGrabSetup]: #InputGrabSetup
+[InputUngrabReceived]: #InputUngrabReceived
+[InputUngrabReset]: #InputUngrabReset
+[Methods]: #Methods
+[NotifyGrab(GameObject)]: #NotifyGrabGameObject
+[NotifyUngrab(GameObject)]: #NotifyUngrabGameObject
+[OnAfterGrabSetupChange()]: #OnAfterGrabSetupChange