Created start of Interactive modifier

assets/system/first_person_player.modifier.wren

@@ -44,7 +44,7 @@ class Data {
 #desc = "**Player movement system**. Takes the player's input and moves the player's character." 
 #icon = "luxe: image/modifier/modifier.svg"
 class FirstPersonPlayer is API {
-  set_movement_active(entity: Entity, active: Bool) {
+  static set_movement_active(entity: Entity, active: Bool) {
 	system(entity).movement_active = active
   }
 }