Puts Copyable Moves in its own namespace for clarity, began working on assist unit tests

Scripts/Moves/Assist.as

@@ -15,7 +15,7 @@ namespace Gen7 {
                 for (uint j = 0; j < moves.length; j++){
                     auto m = moves[j];
                     if (m is null){ continue; }
-                    if (CanCopyMove(m.MoveData)){
+                    if (CopyableMoves::CanCopyMove(m.MoveData)){
                         possibleMoves.insertLast(m.MoveData);
                     }
                 }
@@ -28,4 +28,16 @@ namespace Gen7 {
             moveName = possibleMoves[i].Name;
         }
     }
-}
+}
+
+#if TESTS
+[Test name="Assist: Switch move to known move from party member"]
+void Assist_ChangesMove(){
+    auto p1 = CreateSimpleParty({"charizard", "blastoise"}, 100);
+    auto p2 = CreateSimpleParty({"venusaur", "pikachu"}, 100);
+
+    auto battle = CreateSimpleBattle(684, p1, p2);
+    
+}
+
+#endif