optionaly stop previous broadcasted service on return to movielist in movieplayer

Signed-off-by: littlesat <littlesat99@yahoo.com>
Move the eTimer out of the PictureInPicture Screen class

As it might have wierd results when deleting this class
Ensure that PIP proc is made visible even when PIP does not exists

This resulted in not apearing PIP when you did a service scan before.
ScanSetup: simplify some code to stop the PIP before scan

The same can be performed on more places where this is done
Standby: Simplify some code to stop PIP when going in standby
Simplify stop PiP in some plugins
Merge remote-tracking branch 'openpli/master'