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, and a battery slot for illumination. Also added two slots in these three types of goggles, allowing you to equip all three simultaneously even when not wearing any helmet or hat. 覆盖了原版游戏的头盔、帽子和面具，添加了三个插槽与一个电池槽位，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，以及提供照明。同时也为这三种护目镜添加了内置槽位，这样即便你没有佩戴任何头盔或帽子也可同时装备这三种护目镜。