DWARF needs to support Fat Mach-O

[CouleeApps]

What is the feature you'd like to have?
I want the DWARF debug info parser to handle Fat Mach-O files. It should select from the Fat Mach-O an architecture slice that is the same as my opened binary (ideally) or at least give me the ability to pick which one I want.

Is your feature request related to a problem?
I tried to open libbinaryninjacore.dylib in binja with symbols and it couldn't load my symbols :(

Are any alternative solutions acceptable?
I can lipo libbinaryninjacore.dylib.dSYM -thin arm64 -output libbinaryninjacore.dylib.dSYM.arm64 and load that, but that is clunky and not documented apparently.

[plafosse]

It would probably happen automatically if we re-wrote Fat Mach-O to use containers.

[negasora]

Added in 5.3.8695-dev