MainFrm: Immediately switch to the normal preset when Esc is pressed when the caption is hidden.
Move creation/destruction of CFullscreenWnd to the Main Thread.

This reverts commit f6c1126aeff2f00e7e45427efaa7cb998ec8f55a.
Put LAVFilters files in a different folder when using x64.
Update installer.

Delete old LAVFilters for the x64 build.
Audio Switcher: Exhibit all audio tracks available.

The "Play > Audio" menu now includes all the embedded tracks exhibited by the source filter and the external tracks.
Improve the infinite recursion detection when parsing playlists.

The parser was sometimes too strict and rejected valid playlists.