Addition of PiP function

[alec-cs]

Hi,

I modified the PiP functions again.

Properties:

• The settings for the PiP functions are possible from a separate Menu item (PiP settings).
• The size and position of the PiP window can now be set to both "Standard" and "Ads filtering" modes (selectable from a menu). In "Standard" mode, you can change the size and position.
• The EPG functions already work properly in the PiP window in "Side by Side" mode.
• I created the .pot file because of the multiple languages.
• The History Zap feature can also be used quickly by using the Blue button.

For better use, I have improved the texts and made it easier to use.