Edit name of Library

[ValChinnici]

Change the name of the library and sketch from:
PhysicsLabsFirmware
to:
PhysicsLabFirmware

[per1234]

@facchinm shouldn't the repository name also be changed? If so, the url value in library.properties will also need to be updated.

[facchinm]

Yes but I don't have enough powers 🙂 @mastrolinux may you change the repo name?

[sandeepmistry]

@facchinm I've renamed it.