Fix Windows exe build by providing icon in ICO format

[mrolappe-o21]

Building Windows exe (package.sh -w) currently fails with following error that is caused by the app icon format. This PR fixes the problem by providing the app icon in ICO format.

Traceback (most recent call last):
  File "c:\Python37\lib\site-packages\win32ctypes\pywin32\pywintypes.py", line 35, in pywin32error
    yield
  File "c:\Python37\lib\site-packages\win32ctypes\pywin32\win32api.py", line 43, in LoadLibraryEx
    return _dll._LoadLibraryEx(fileName, 0, flags)
  File "c:\Python37\lib\site-packages\win32ctypes\core\ctypes\_util.py", line 42, in check_null
    raise make_error(function, function_name)
OSError: [WinError 193] Bad EXE format for %1.

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "c:\Python37\lib\site-packages\PyInstaller\utils\win32\icon.py", line 233, in CopyIcons
    hsrc = win32api.LoadLibraryEx(srcpath, 0, LOAD_LIBRARY_AS_DATAFILE)
  File "c:\Python37\lib\site-packages\win32ctypes\pywin32\win32api.py", line 43, in LoadLibraryEx
    return _dll._LoadLibraryEx(fileName, 0, flags)
  File "c:\Python37\lib\contextlib.py", line 130, in __exit__
    self.gen.throw(type, value, traceback)
  File "c:\Python37\lib\site-packages\win32ctypes\pywin32\pywintypes.py", line 37, in pywin32error
    raise error(exception.winerror, exception.function, exception.strerror)
win32ctypes.pywin32.pywintypes.error: (193, 'LoadLibraryExW', 'Bad EXE format for %1.')

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "c:\Python37\lib\runpy.py", line 193, in _run_module_as_main
    "__main__", mod_spec)
  File "c:\Python37\lib\runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "C:\Python37\Scripts\pyinstaller.exe\__main__.py", line 7, in <module>
  File "c:\Python37\lib\site-packages\PyInstaller\__main__.py", line 114, in run
    run_build(pyi_config, spec_file, **vars(args))
  File "c:\Python37\lib\site-packages\PyInstaller\__main__.py", line 65, in run_build
    PyInstaller.building.build_main.main(pyi_config, spec_file, **kwargs)
  File "c:\Python37\lib\site-packages\PyInstaller\building\build_main.py", line 720, in main
    build(specfile, kw.get('distpath'), kw.get('workpath'), kw.get('clean_build'))
  File "c:\Python37\lib\site-packages\PyInstaller\building\build_main.py", line 667, in build
    exec(code, spec_namespace)
  File "./logsmith.spec", line 69, in <module>
    icon='./app/assets/app_icon.png')
  File "c:\Python37\lib\site-packages\PyInstaller\building\api.py", line 446, in __init__
    self.__postinit__()
  File "c:\Python37\lib\site-packages\PyInstaller\building\datastruct.py", line 160, in __postinit__
    self.assemble()
  File "c:\Python37\lib\site-packages\PyInstaller\building\api.py", line 540, in assemble
    icon.CopyIcons(tmpnm, self.icon)
  File "c:\Python37\lib\site-packages\PyInstaller\utils\win32\icon.py", line 234, in CopyIcons
    except win32api.error as W32E:
AttributeError: module 'win32ctypes.pywin32.win32api' has no attribute 'error'

[stephanrauh0000]

The modified version compiles and work flawlessly on my Windows machine. Thanks, @mrolappe-o21!

Maybe we should mention in the READ.me how to compile the library. In a nutshell: if you're using Windows, you need a Linux installation in your WSL, and - like mentioned above - it's compiled using the command package.sh -w.

[redvox]

Thank you for your contribution!