IDT: Create identity group configuration file.

[Bubbus]

A config file should be made which allows us to define faces and speakers for each identity-group. My initial take is that we can use a structure similar to the gearscript files, eg:

_speakers = ["voice1", "voice2", ...];
_faces = ["face1", ...];

CREATE_IDENTITY(csat,_speakers,_faces);

If you think of a simpler config schema then go for it. the focus is on making it hard for a newbie to screw up, so the ideal config schema is easily copy/pasteable and it should be obvious which parts need to be edited.

If you're up for it then make a new identity_macros.hpp file and fill in whatever you need to make this config file work. Use gearscript_macros.hpp as reference for the macro stuff. If you want to avoid macros for now then use the config to assign these identities to global variables like f_var_identity_csat and we can abstract that part away from the end-user after the fact.