Refactor rhythm action architecture

resources/actions/skill_dd.tres

@@ -0,0 +1,17 @@
+[gd_resource type="Resource" script_class="ActionData" load_steps=2 format=3]
+
+[ext_resource type="Script" path="res://resources/action_data.gd" id="1"]
+
+[resource]
+script = ExtResource("1")
+id = &"skill_dd"
+display_name = "D+D"
+input_pattern = Array[StringName]([&"D", &"D"])
+startup_beats = 0.25
+active_beats = 0.25
+recovery_beats = 0.5
+cancel_from = 0.5
+animation = &"warrior_aa"
+energy_reward = 1.0
+displacement = &"right"
+clear_window = false