Capture: Fix resolution change with EVR, VMR renderless and madVR.
Add support for OSD in the capture mode.

Fix wrong window size after opening device.
Also some cosmetic changes.
Display more descriptive window title in capture mode.

Use new title also for Skype Now Playing status.

Based on Underground78 suggestions.
DVB: Add event name to the window title when available.

- Change logic when ParseEIT fails.
- Change UpdatePSI to not search for channel again.
BD: Open index.bdmv directly by internal LAV and let it select playlist.
Fix DXVA status for some decoders after 4a79186.

Checking status only once is not reliable.
Even LAV Video Decoder can disable HW decoding on fly except DXVA Native mode.
Show HW decoder name in status bar.
VSFilter: Improve the external subtitles naming.

ISR: Reuse subtitle name on reload.