python-dotty-dict: new package

[fauxpark]

Patches are temporary, due to pawelzny/dotty_dict#69 - the changes have been merged, but no new release yet. I figured this was better than submitting one or both of this and qmk-dotty-dict, which was created to solve this problem on MSYS2.

[Biswa96]

Is that change required for this package? or does python itself have the issue? Found something https://stackoverflow.com/questions/45855297

[fauxpark]

I'm not 100% sure. Adding encoding='utf-8' to the readme open() probably does fix that error, but I wonder if the setup() call it is being passed to will have anything to say.

[fauxpark]

Tested and working in a fresh VM with Japanese language set 👍 seems like I had to change the locale for non-Unicode programs for locale.getpreferredencoding() to finally give me cp932 instead of cp1252.