[FEATURE] OCPP: Implement missing OCPP 1.6 commands

[jerome-benoit]

Duplicate issue

• I've searched for any related issues and avoided creating a duplicate issue.

Description

See README.md for the list.

Attachments

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[jerome-benoit]

The firmware update is the most awaited command:

• define a CS template JSON firmwareUpgrade configuration section format to simulate the target firmware version update behavior, something like

{
    "firmwareVersion": {
        "incrementMajor": false, 
        "incrementMinor": false, 
        "incrementPatch": true
    },
    "reset": true,
    "resetDelay": 60,
    "checkIntegrity": false
}

• implement the OCPP command
• implement the firmware update simulation (with/without configuration persistence?)

[jerome-benoit]

The second most awaited command is GetCompositeSchedule.

Updated: Done.

[jerome-benoit]

PR #574 implements:

• ReserveNow
• CancelReservation