feat: implemented ActionSetLayers

Author: f8ith

dll/dll/steam_controller.h

@@ -31,10 +31,13 @@ struct Controller_Action {
     ControllerHandle_t controller_handle{};
     struct Controller_Map active_map{};
     ControllerDigitalActionHandle_t active_set{};
+    std::map<ControllerActionSetHandle_t, struct Controller_Map> active_layers{};
 
     Controller_Action(ControllerHandle_t controller_handle);
 
     void activate_action_set(ControllerDigitalActionHandle_t active_set, std::map<ControllerActionSetHandle_t, struct Controller_Map> &controller_maps);
+    void activate_action_set_layer(ControllerActionSetHandle_t active_layer, std::map<ControllerActionSetHandle_t, struct Controller_Map> &controller_maps);
+    void deactivate_action_set_layer(ControllerActionSetHandle_t active_layer);
     std::set<int> button_id(ControllerDigitalActionHandle_t handle);
     std::pair<std::set<int>, enum EInputSourceMode> analog_id(ControllerAnalogActionHandle_t handle);
 };