Merge pull request #674 from GTD-Carthage/content-unstable

Upstream sync

Tweak license attribution

Added Experimental ID24 Monster Control module

More CI testing

Test fix for 32-bit CI

MIDI generator adjustments

Add temp/scratch folder for music gen, etc

Update translation template

Add one-seed-wide secret fence fab

Update FLTK from upstream and add some missing defines for non-MSVC c…

…ompilers