TS100 T12 handle

A printed part to attach a piece of a [Chinese T12 handle](https://www.aliexpress.com/item/9501-Soldering-Handle-DIY-Set-For-T12-STC-STM32-OLED-LED-Temperature-Controller-Soldering-Station-with/32871508100.html?spm=2114.10010108.1000014.5.22cebd4adpVhfn&scm=1007.13338.98644.000000000000000&scm_id=1007.13338.98644.000000000000000&scm-url=1007.13338.98644.000000000000000&pvid=34f885cc-add3-4d64-8c3d-1824afd3a7c5&_t=pvid:34f885cc-add3-4d64-8c3d-1824afd3a7c5,scm-url:1007.13338.98644.000000000000000)