Added Explosive_Kunai and Makibishi to Boonji NPC

Not sure if they  were added somewhere already, but on rAthena they were on Boonji NPC last time I checked.
Also i think i made a mistake on the pull request >.> the Merge Pull Request #1 commit was included for some reason, I didn't know how to select, I had to update my fork before i did this. Sorry, first timer here : (