add godot project scaffold: root scene, autoload, panel base, theme, icon

scripts/panel_base.gd

@@ -0,0 +1,24 @@
+extends PanelContainer
+class_name PanelBase
+
+
+signal panel_activated
+signal panel_deactivated
+
+
+func _ready() -> void:
+    pass
+
+
+func activate() -> void:
+    show()
+    panel_activated.emit()
+
+
+func deactivate() -> void:
+    hide()
+    panel_deactivated.emit()
+
+
+func refresh(data: Dictionary) -> void:
+    pass