Changes the DGO build order so that the city gets compiled first, and a
random guess at an "order" of which levels people might edit more often.
Most of the data-only borrow files are moved to the end as well.
Also moves around files in the `goal_src` tree to a structure that makes
a bit more sense, some files were either in the completely wrong place,
their folders had strange names, were too deep for no reason or were
just too far away from other relevant files. This structure should make
it easier to guess a file's location.
Actors that use types from a level that got unloaded should now get
killed immediately instead of continuing to exist and eventually crash
the game.
NOTE: Will spam the console whenever a bad actor tries to spawn. I would
like to document all instances of where this happens!
Mostly easy / particle def files. I did a bit in `ruins` but CFG
failures and missing `drawable` functions make it untestable for now so
I've put that on pause.
