Add research lab planets and research points (#63)

tests/test_lab_resources.gd

@@ -10,6 +10,7 @@ func _initialize() -> void:
 	game.vessel_levels.clear()
 	game.build_time_scale = 0.02
 	game.rocks = 500
+	game.research_points = 1
 	lab_id = game.add_building(GameState.BUILDING_SHIP_LAB, Vector2.ZERO)
 	if not game.queue_lab_research(lab_id, "int_damage"):
 		_fail("could not queue research")