OCPP update and clean up

[matth-x]

General update of the OCPP lib and a few changes:

• Revision of the synchronization between OpenEVSE configs and OCPP configs (see Best practice to change configs programmatically? #681)
• Lifecycle management of OCPP lib reworked and combined with MicroTask.wake() and MicroTask.Infinate
• Define OCPP factory defaults which reflect the typical usage of OpenEVSE better (addresses OCPP HASS integration #663)
• Report the hardware maximum allowed current to the OCPP server (addresses OCPP does not set max_current #632)
• General clean up

[jeremypoulter]

@chris1howell I am not sure this was ready to be merged. Was still in draft and has references to dev libraries

[jeremypoulter]

Oh sorry looks like it is not draft any more, will check.

[matth-x]

Thanks for taking a look. I left it as a draft because I was hoping for more real world tests before merging. Anyway, I will publish the OCPP lib to the PIO registry ASAP so you can merge.

[matth-x]

Now it should be ready to be merged

[matth-x]

@jeremypoulter Can you merge this? I tested it and it works as expected

[jeremypoulter]

Hi, I have been trying to get some time to review/test, made a start on it, but it is a big PR

[matth-x]

Okay, happy that it gets tested further. Do it when you find the time to, I'll keep the PR in sync.