Refactor rhythm action architecture

resources/actions/skill_d_space_space.tres

@@ -0,0 +1,16 @@
+[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_d_space_space"
+display_name = "D+SP+SP"
+input_pattern = Array[StringName]([&"D", &"SP", &"SP"])
+startup_beats = 0.25
+active_beats = 0.25
+recovery_beats = 0.5
+cancel_from = 0.5
+animation = &"warrior_a_space_space"
+displacement = &"right"
+clear_window = true