[gui] adds listitem info label inprogress to determine if epg item is in progress

This adds a new listitem info label inprogress which indicates if the
associated epg tag points to a current ongoing program.
fixed context menu 'remove safely' selection
libdvdcss-1.2.12 removed _XBOX unneeded patches
libdvdcss-1.2.12 updated diff files
libdvdcss update to 1.2.13 - incl diff file
libdvdread-libdvdnav update to 4.2.1
libdvdread-libdvdnav - remove unused xbmc patches
libdvdread-libdvdnav - updated diff files
correct codec names, MPEG is always written in upper-case
[cosmetic] add missing "l" in some comments
[ios] - remove the audiosession handling from the sink - its handled in the UIApplication already
[ios] - always send a speed change to ios when the player gets paused (to stop the playback progress bar in the ios control center)
[ios] - allow usage of IDispResource on the whole darwin platform (not only osx)
[ios] - allow to register IDispResource on iOS Windowing and call OnAppFocusChange when needed
[ios] - call OnAppFocusChange in windowing when app is backgrounded/foregrounded on ios
[epg] get rid of orientation support
upnp: controller functionality depends upon server being enabled (fixes #15050)
upnp: unregister any discovered UPnP renderers when disabling the upnp controller
[dxvahd] attempt to fix colour range
[rbp] Restructure the egl context and display variables

Using a global for context that gets set by the first run of the
texture thread is risky if the first function call happens directly
(if it's in a suitable thread so bypasses the texture thread).