MGG: Update Progress (Navigation Fix) (Patreon)

I've finally found a work around for the AI abandoning their paths. When the player commands a Monster to move somewhere, they will now attempt to move to that spot again if the navigation fails, and continue to do so until they reach the location, or you try to issue them a different command.

Monsters pathing to their own chosen spot are still breaking pathing, and I cannot determine why at this moment. But at least for now Monsters who are commanded by the player to move to a spot are consistently reaching their destination in my tests.  The system still needs a bit of improvement, but this should at least mitigate the headaches from trying to move your monsters to certain spots.

I still need to fix a couple things in the new version, but it will be ready by tomorrow (26th).