archives: avoid collapsing archive with single folder

We have historically used the m_bIsFolder after this as a flag,
to skip display of file. For example for rar 00X part files.

By not collopsing single folders, we can properly browse into
them again.
Properly handle cookies that specify a sub-domain
ffmpeg: correctly handle cookies that specify a sub-domain
Merge pull request #4081 from voguemaster/master

ffmpeg: Correctly handle cookies that specify a sub-domain.
Merge pull request #4050 from elupus/archivefolder

archives: avoid collapsing archive with single folder
[gui] fix setting state on controls inside groups inside containers. fixes #14295
[smartplaylist] fix incorrect field used for Studio/MPAA fields for episodes. fixes #14875
[Fix][dvdplayer] Show forced subs (again).
Fix regression introduced by commit eee58b9b9463444d41ee93e7534032cdf4300931.
[Fix][omxplayer] Show forced subs (again).
Fix regression introduced by commit c3acf406e6ec6b1769c350032c09c672ca7b1ab8.
[*SQUASH*] DVDPlayer
[*SQUASH*] OMXPlayer