added mods/common/lua scripts
added mods/cnc Lua scripts
test for a list of files when loading mods

don't cache test file string arrays
capturable husks for Tiberian Dawn
capturable husks for Red Alert
capturable husks for Dune 2000
update CHANGELOG
Tidy AutoTarget code.
Remove redundant AttackMove definitions.
Add AttackMove support to RA aircraft.
Simplify HeliFly interface.
Add range support to HeliFly.
Simplify Fly interface.
Add range support to Fly.
Ensure that planes circle after being ordered via IMove.
Add following to IMove.
Add Guard support to Aircraft.
Fix HeliFly lua bindings.
Make aircraft guardable.
Merge pull request #4517 from Mailaender/reactivate-husks

Capturable husks for all mods