Update E2 function

Change what the function is marked to return to what it is actually returning
Previously was returning a contraption object that just wasn't valid to instead represent the collection of entities it is supposed to

lua/entities/gmod_wire_expression2/core/custom/cfw.lua

@@ -56,7 +56,7 @@ end
 
 __e2setcost(20)
 
-e2function contraption contraption:getEntities()
+e2function array contraption:getEntities()
     if not isValidContraption(this) then return {} end
 
     local output = {}