Added Glitch Room Source code to Gitty

tests/room_network/check_capabilities.gd

@@ -0,0 +1,22 @@
+extends SceneTree
+
+func _initialize() -> void:
+	var cabinet := CabinetProfile.new()
+	var tempest: GameDefinition = load("res://data/games/tempest.tres")
+	cabinet.capabilities.assign([&"spinner", &"button_1", &"start_button"])
+	assert(not tempest.can_run_on(cabinet), "Superzapper requires a second button")
+	cabinet.capabilities.append(&"button_2")
+	assert(tempest.can_run_on(cabinet))
+	cabinet.capabilities.erase(&"spinner")
+	assert(not tempest.can_run_on(cabinet))
+	cabinet.capabilities.append(&"trackball")
+	assert(tempest.can_run_on(cabinet))
+	var robotron: GameDefinition = load("res://data/games/robotron.tres")
+	cabinet.capabilities.assign([&"dual_joystick_8way", &"start_button"])
+	assert(robotron.can_run_on(cabinet))
+	cabinet.capabilities.assign([&"joystick_8way", &"button_1", &"button_2", &"button_3", &"button_4", &"start_button"])
+	assert(robotron.can_run_on(cabinet))
+	cabinet.capabilities.erase(&"button_4")
+	assert(not robotron.can_run_on(cabinet))
+	print("PASS: cabinet control alternatives and common requirements")
+	quit()