* Introduce FileData Filtering for Kiosk and Kid Modes to:
1. In Kiosk mode: Hide items with metadata tag `<hidden>true</hidden>`
2. In Kid mode: only show items with metadata tag `<kidgame>true</kidgame>`
* ES will auto-revert UI mode back to Full when there is nothing at all to show.
* Changing the setting hideQuitMenuOnKidUI to true will hide this menu.
- Video Screensaver to skip fade in/out if Instant
- Video Previews to skip fade in/out if Instant
- Added Pause/Resume methods to PS for better description
- Added basic documentation to PS header file
- Added trailing after waking up from SS
- Added proper timing offsets after PS is triggered
- PS set to Disabled by default
- some whitespace edits
- Removed warning while enabling Instant mode
- Fixes Instant mode setting not being saved
- Added methods to support changing screensaver videos after timeout
while using OMX.
- Added methods to support changing Screensaver play next video timeout
- Handled fast animations when Screen saver was disabled by setting
timeout to 0
- Minor fixes
- Change Power Saver (PS) from Other Settings menu
- 4 Modes are available : Disabled, Default [default], Enhanced, Instant
- All modes work well with Screensavers and Video previews.
- PS is disabled while running Videos through VLC.
- PS is disabled while Scrapping
- Game counts are shown immidiately if in Instant Mode
- PS mode defaults if Transitions are changed while in Instant Mode
- Refactoring System Environment data
- Added Virtual System Manager class
- Added "all", "favorites" and "last played" systems
- Added GuiInfoPopup class for notifications
- Added Favorites to metadata, as well as a shortcut to toggle favorites
- Added warning if enabling systems but themes don't support it
- Added "filter by favorites" per system
- Adjusted "Go to Random Game" behavior to account for the fact that we now have an "All Games" system
- Added "sort by system name" for the collections
