Investigate UTF-8 on Windows

[dcbishop]

Keeping things internally in UTF-8 seems the best bet but otherwise just change everything over to wstring/wchar_t.

printf => wprintf for console.cpp debug/logging output.

Something like "ifstream file(filename.c_str());" probably needs to be have the name converted to wchar_t via codecvt and then used with wifstream to properly support unicode file names in ResourceManager.

[dcbishop]

http://www.utf8everywhere.org/