Windows openxr loader UTF8 path read error

[MingQQ]

Hello，i found openxr loader got an error when read runtime path from windows regedit which contains chinese word。

1. xr loader turn wider char to utf8 after read runtime path from regedit:

2. below is utf8 string：

3. xr loader turn back to wide char when try to check file if exists:

4. xr check file ok, then store the path in the list with utf8 format:

5. got error when try to load file with utf8 formated path，std::ifstream could not recognize utf8 string:

[rpavlik-bot]

An issue (number 1794) has been filed to correspond to this issue in the internal Khronos GitLab (Khronos members only: KHR:openxr/openxr#1794 ), to facilitate working group processes.

This GitHub issue will continue to be the main site of discussion.