Feature/p3i screensaver fixes

[swmarks]

This adds a patch for Kodi that fixes a bug where video screensavers would either fail to play without waking the system, or cause phantom CEC power-offs, as well as fixing issues with waking the TV upon exiting the screensaver.

• Removed the IsPythonScreenSaverActive bypass, allowing Kodi to accurately report IsPlayingVideo() == true while a video screensaver runs.
• To prevent this from waking the system, added guards to the activity timer and DPMS logic: explicitly telling Kodi that while the screensaver is active, player-initiated events should never trigger an activity timer reset.
• The CEC adapter and internal DPMS now receive accurate player states during screensaver tear-down, eliminating phantom power-offs, while the screensaver itself remains stable without waking Kodi up.
• Decoupled the "Wake devices when exiting screensaver" setting from the CEC "Make Kodi the active source on startup" setting, allowing the screensaver to properly wake the TV even if the startup broadcast is disabled.