DVB: Show current event time in the status bar.
DVB: Make use out of the DVBState struct.
Mpeg2SectionData: Minor refactioring of the ParseEIT() method.
DVB: Cosmetic for SetChannel().
DVB: Fix time calculations.

StartTime could have been inaccurate in certain cases.
DVB: Add channel name to snapshot filename.
DVB: Add only supported services.
DVB: Add context menu to the navigation dialog.

Use std::vector to store channel in order to get better sort abilities.
DVB: Use proper media types.

Resolves ugly audio pops and cracks for EAC3.