Added a dynamic layout system where UI elements can be moved about on a tiled grid.

scripts/camera_layout_frame.gd

@@ -0,0 +1,9 @@
+@tool
+extends AspectRatioContainer
+
+func _ready() -> void:
+	resized.connect(_update_height)
+	_update_height()
+
+func _update_height() -> void:
+	custom_minimum_size.y = ceilf(size.x / ratio)