* Moved `RDMOPTG_Crimson_Weapon` from const.txt to `enum Random_Option_Group` in `itemdb.h`.
* Removed `RDMOPT_WEAPON_ATTR_POISON`, `RDMOPT_WEAPON_ATTR_TELEKINESIS`, and `RDMOPT_WEAPON_ATTR_UNDEAD` from Crimson Weapon random group (`RDMOPTG_Crimson_Weapon`), thanks to @Atemo
* Added db header for impot-tmpl files, thanks to @secretdataz

Signed-off-by: Cydh Ramdh <cydh@pservero.com>