Initialization fails with non-ascii home directory / user path

[tobias-klein]

It has been observed that the initialization of node-sword-interface fails with a non-ascii home directory / user path. Crash reports were received from Windows users. Whether or not this also happens on Linux/macOS is unclear.

[tobias-klein]

This has been fixed by consistently using wchar / wstring versions of the Windows filesystem related methods and also converting UTF8 filenames to UTF16 before reading the respective files.

See also:

• http://www.nubaria.com/en/blog/?p=289
• https://stackoverflow.com/questions/30829364/open-utf8-encoded-filename-in-c-windows