pvr: channel/guide osd improvements

* new skin setting to choose the alignment of channel osd (left/right)
* revert to old channel osd with channel icons
* redesign of guide osd
* changed color of SelectedGreen to white
pvr: added new extended channel osd

Adds a new extended channel osd and a skin setting to enable/disable
the extended channel osd.
pvr: added new extended channel osd

Adds a new extended channel osd and a skin setting to enable/disable
the extended channel osd.
Merge branch 'channel-osd'
manual merged 'channel-osd'
pvr: added new extended channel osd

Adds a new extended channel osd and a skin setting to enable/disable
the extended channel osd.
Merge branch 'channel-osd'
pvr: added new extended channel osd

Adds a new extended channel osd and a skin setting to enable/disable
the extended channel osd.
Merge branch 'channel-osd'
pvr: added new extended channel osd

Adds a new extended channel osd and a skin setting to enable/disable
the extended channel osd.
Merge branch 'channel-osd'
channelosd: removed number of items label and progressbar stuff
osd: added new extended guide info osd
osd: added new extended epg guide osd
Merge branch 'channel-osd'
osd: reduce transparency for background
Merge branch 'channel-osd'
pvr: renamed osd-back-channellist.png to osd-back-pvr.png
pvr: renamed skin var PVRExtendedChannelOSD to PVRExtendedOSD
pvr: renamed language key 41225