Build wheels for Windows (64 bit, non-pypy)

[chaitan94]

It seems the one issue was that the name 'timezone' is taken by the MSVC's preprocessor. Renaming the variable which was using this name turned out to solve this issue.

However, there seems to be another issue while running tests which looks like a unicode issue:

>       assert_matches_json(table, table_json)

D:\a\pytomlpp\pytomlpp\tests\python-tests\test_api.py:87: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
D:\a\pytomlpp\pytomlpp\tests\python-tests\test_api.py:69: in assert_matches_json
    assert_matches_json(yaml_obj[key], json_obj[key])
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

yaml_obj = '\u03b4', json_obj = {'type': 'string', 'value': '\xce\xb4'}

But wheel seems to be being built as of now regardless of this issue.

[chaitan94]

This is working smoothly after https://github.com/bobfang1992/pytomlpp/pull/15

[chaitan94]

@bobfang1992 This should be good to merge

[bobfang1992]

Thanks!