extra-kotlin: Add some JoinConfiguration related methods

extra-kotlin/src/main/kotlin/net/kyori/adventure/extra/kotlin/ComponentExtensions.kt

@@ -25,6 +25,7 @@ package net.kyori.adventure.extra.kotlin
 
 import net.kyori.adventure.text.Component
 import net.kyori.adventure.text.ComponentLike
+import net.kyori.adventure.text.JoinConfiguration
 
 /**
  * Add [that] as a child component.
@@ -33,3 +34,23 @@ import net.kyori.adventure.text.ComponentLike
  * @since 4.6.0
  */
 operator fun Component.plus(that: ComponentLike): Component = this.append(that)
+
+/**
+ * Joins this array of components using the provided [config].
+ *
+ * @param config the join configuration
+ * @return the resulting component
+ * @since 4.10.0
+ */
+public fun <T : ComponentLike> Array<T>.join(config: JoinConfiguration = JoinConfiguration.noSeparators()): Component =
+    this.toList().join(config)
+
+/**
+ * Joins this iterable of components using the provided [config].
+ *
+ * @param config the join configuration
+ * @return the resulting component
+ * @since 4.10.0
+ */
+public fun <T : ComponentLike> Iterable<T>.join(config: JoinConfiguration = JoinConfiguration.noSeparators()): Component =
+    Component.join(config, this)

extra-kotlin/src/main/kotlin/net/kyori/adventure/extra/kotlin/JoinConfigurationDSL.kt

@@ -0,0 +1,36 @@
+/*
+ * This file is part of adventure, licensed under the MIT License.
+ *
+ * Copyright (c) 2017-2021 KyoriPowered
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+package net.kyori.adventure.extra.kotlin
+
+import net.kyori.adventure.text.JoinConfiguration
+
+/**
+ * Builds a new join configuration from the provided [builder].
+ *
+ * @param builder the builder to configure the resulting join configuration
+ * @return a new join configuration
+ * @since 4.10.0
+ */
+public fun joinConfiguration(builder: JoinConfiguration.Builder.() -> Unit): JoinConfiguration =
+  JoinConfiguration.builder().also(builder).build()