Move GetAvailableMods
Reviewed by: elexis Differential Revision: https://code.wildfiregames.com/D1106
unneeded include contradicting the forward declaration below
(Well it's needed for the CxPrivate, but the forward declaration should have been nuked)
missing ScriptInterface include
One of the few instances where a oneliner forward incoude would have been sufficient (still is)
ScriptInterface.h still needed for the CxPrivate
except for that JS::Value