Allow mod exclusions in get_all_mods.py

The purpose of get_all_mods.py is to test individual mods for errors,
instead of checking inter-mod compatibility. As such, it shouldn't need
to start triggering errors  because of a between-mod compatibility
error that is tracked.

A band-aid fix for the CI flakiness that 74443 causes. Should be removed
when that is fixed.

build-scripts/get_all_mods.py

@@ -10,10 +10,20 @@
 
 mods_this_time = []
 
+exclusions = [
+    # #74443 - incompatibility between mindovermatter and aftershock due to bug
+    ('mindovermatter', 'aftershock')
+]
+
 
 def compatible_with(mod, existing_mods):
     if mod in total_conversions and total_conversions & set(existing_mods):
         return False
+    for entry in exclusions:
+        if entry[0] == mod and entry[1] in existing_mods:
+            return False
+        if entry[1] == mod and entry[0] in existing_mods:
+            return False
     return True