More hat and helmet slots

A simple mod added three slots to helmets, hats, and masks in the vanilla game, allowing you to equip the Health Scanner HUD, Thermal Goggles, and Electrician's Goggles while wearing them.
覆盖了原版游戏的头盔、帽子和面具，添加了三个插槽，以便于你在佩戴头盔的同时装备健康扫描仪、热成像与电工护目镜。