Allow script arrays to hold any value type, add script engine tests, archive old rpg code

Remove the per-array type category so arrays can mix types like structs.
Add 13 passing and 125 expected-failure duskscript test fixtures with a
table-driven runner. Also includes the in-progress entity/physics and
archive moves from the working tree.

Co-Authored-By: Claude Sonnet 5.5 <[email protected]>

.gitignore

@@ -91,7 +91,7 @@ assets/borrowed
 
 /archive0
 /archive1
-# /archive
+/archive
 
 __pycache__