Display more descriptive window title in capture mode.

Use new title also for Skype Now Playing status.

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

- Change logic when ParseEIT fails.
- Change UpdatePSI to not search for channel again.
CaptureBar: Fix panel size.
Fix NukeDownstream() for EVR-CP and Sync Renderer.

This commit fixes #720, #1807, #2625, #3161
Capture: Set default output path, if path form settings is invalid.
Capture: Open capture bar automatically
Hide the seekbar in capture mode since it can never be used.

Commit was made with alexmarsev's kind help.
DVB: Try to avoid dummy resize
Split PM_CAPTURE mode into PM_ANALOG and PM_DIGITAL
DVB: Don't update stats when channel is not active.
Fix OnFilePostOpenmedia() for capture mode.
Lower Navigation panel minimal size.
DVB: Show current event time in the status bar
DVB: Make use out of the _DVBState struct.
DVB: Cosmetic for SetChannel()
Restore default window rect on device lost.