Implementation of support for Sony RX10M4 conflicts with the existing Sony getAfPoints() logic

[capricorn8]

The code to support Sony RX10M4 has been placed in a separate file (SonyRX10M4Delegates.lua) but uses the same class definition (SonyDelegates) as it is used for general support of Sony cameras (SonyDelegates.lua).

Which makes all calls to getAfPoints() for a Sony camera being handled according to the RX10M4 logic.

Quick and easy fix is to let RX10M4 have its own, separate class.

The cleaner solution is to integrate all Sony relevant code in SonyDelegates.lua, as this would make generation of info views (#214 ) more simple.