pip package lacks support for apple M1/arm64e

[psifertex]

  File "go.py", line 1, in <module>
    import pygore
  File "/Users/jwiens/Library/Python/3.8/lib/python/site-packages/pygore/__init__.py", line 5, in <module>
    from .lib import CompilerVersion, Function, Method, Package, GoFile,\
  File "/Users/jwiens/Library/Python/3.8/lib/python/site-packages/pygore/lib.py", line 5, in <module>
    import pygore.internal as internal
  File "/Users/jwiens/Library/Python/3.8/lib/python/site-packages/pygore/internal.py", line 21, in <module>
    lib = cdll.LoadLibrary(os.path.dirname(__file__) + '/' + libFile)
  File "/Applications/Xcode.app/Contents/Developer/Library/Frameworks/Python3.framework/Versions/3.8/lib/python3.8/ctypes/__init__.py", line 443, in LoadLibrary
    return self._dlltype(name)
  File "/Applications/Xcode.app/Contents/Developer/Library/Frameworks/Python3.framework/Versions/3.8/lib/python3.8/ctypes/__init__.py", line 365, in __init__
    self._handle = _dlopen(self._name, mode)
OSError: dlopen(/Users/jwiens/Library/Python/3.8/lib/python/site-packages/pygore/libgore.dylib, 0x0006): tried: '/Users/jwiens/Library/Python/3.8/lib/python/site-packages/pygore/libgore.dylib' (mach-o file, but is an incompatible architecture (have 'x86_64', need 'arm64e')), '/usr/local/lib/libgore.dylib' (no such file), '/usr/lib/libgore.dylib' (no such file)```

Can always build it manually so not a show-stopper but figured I'd file this to track it for now. Best solution would be to build as a fat mach-o with support for both architectures. 

[TcM1911]

This will have to be addressed in libgore first to compile an arm64 dylib. I don't think the Go toolchain can build a fat Mach-O file so probably need some logic to detect which architecture it is and load the right dylib. I don't have an M1 to test it on and Github Action doesn't support it either.

[ApexHack3r]

@TcM1911 - I have encountered the same issue these changes to the makefile should resolve it, didn't test it on amd64 mac.

[TcM1911]

Looks like a good solution.