Fix only one faction having access to Anomaly research in Multifaction

[SokyranTheDragon]

In Multifaction, only one of the factions can access the Anomaly research tab. Anomaly tab is unlocked when awakening the monolith, but the Anomaly state is global (rather than per-player) which means that there should ever be 1 monolith, and awakening it progresses the Anomaly level for everyone. The issue here is that the code that unlocks Anomaly research tab runs for a single player, meaning that everyone besides the person triggering it will be locked out of it. It also won't unlock for factions unlocked after raising the Anomaly level either.

Changes:

• Added a patch to ResearchManager.Notify_MonolithLevelChanged, and then called the method with faction repeater to ensure that unlocking research applies to all active factions
  • All that the patched method does is unlock all the research tabs locked behind a specific Anomaly level
  • However, this won't double some of the special events, like activating Gray Pall or the ending sequence
• Added a call to ResearchManager:Notify_MonolithLevelChanged inside FactionCreator:InitNewGame to unlock Anomaly research for new factions
  • This will only apply if the Anomaly level is high enough to unlock it
• Added code to call ResearchManager:Notify_MonolithLevelChanged inside MultiplayerWorldComp:DoBackCompat to unlock Anomaly research for factions created before the fix was introduced
  • Again, this will only apply if the Anomaly level is high enough to unlock it
  • I've picked DoBackCompat as it seemed fitting to me, but it could be moved to a different ___location if needed
  • As mentioned in the comments, the monolith is not spawned yet so the check isn't perfect - fixing it would require moving the code to a postfix for Building_VoidMonolith:SpawnSetup
• Added copying of all anomaly knowledge, unlocked research projects, and tab visibility inside of HostUtil:SetupGameFromSingleplayer
  • This roughly matches with original code for normal research, where research progress and applied techprints were copied

@Zetrith if you'd like me to move the code fixing existing save files somewhere else that's not DoBackCompat, or make some other changes, just let me know.