feat(武器): 添加LGBT武器及其脚本实现

添加LGBT武器场景和对应的GD脚本，实现武器攻击逻辑和属性更新功能。武器发射可追踪的彩虹激光并提升攻击属性。

scripts/Contents/Weapons/LGBTWeapon.gd

@@ -0,0 +1,11 @@
+extends Weapon
+class_name LGBTWeapon
+
+func update(to: int, origin: Dictionary, _entity: EntityBase):
+	origin["atk"] += 5 * to
+	origin["time"] /= 1.1
+	return origin
+func attack(entity: EntityBase):
+	var weaponPos = entity.findWeaponAnchor("normal")
+	BulletBase.generate(preload("res://components/Bullets/BigLaser.tscn"), entity, weaponPos, (get_global_mouse_position() - weaponPos).angle())
+	return true