Add EPG Timeline progress indicator

Adds a vertical time indicator to the timeline view of the PVR EPG
Add PVR genre support

Added genre support for timeline EPG
Add EPG Timeline logo and plot

Added the currently selected channel logo and selected plot below the
timeline grid
Replace timeline duration with genre

With start/end time already present, genre seems a better use of the
space.
Various Timeline view changes

Added logo to each channel
Timeline made taller and darker background added
More timeblocks made visible
Add option to hide channel logos in EPG

Added an option in skin settings to allow hiding of the channel logos in
timeline view (selected channel still displays next to program info)