BSplayer 2.6.0.1064

# Added:
- SDK: added BSP_OpenFileW, BSP_GetFileNameW for unicode filenames
- in full screen mode mouse pointer is now less sensitive to mouse movement, it won't be displayed on very small moves
- also added option in Preferences to never show mouse pointer while in full screen mode
# Fixed:
- subtitles wasn't cleared in some cases, fixed
- some other subtitles fixes, also you should use new subtitle parser/renderer
- OSD info was broken with new OSD renderer, fixed
- when adding files to playlist short name was used instead unicode, fixed
- some other bug fixes