A few additional commands, with an edit to *getinventorylist;

Add a few commands along with their use syntax to script_commands.txt
*getcartinventorylist;
*checkbound;
*instance_check_guild;

As well, as an edit to *getinventorylist; to push the equip slot the item is equipped to instead of 1 or 0. It will push the number corresponding to those listed in const.txt
There's a leftover `?` here, you forgot it when removing the account id parameter. Once this is removed, I believe the PR is ready to be merged :3