Upvote Scratch bot

The commands are:
!test
!setprefix yourprefix
!user yourscratchusername
!search
!follow yourscratchusername
!unfollow yourscratchusername
!advertise projectid
!advertiseinstudio projectid
!invite
!help
!followers yourscratchusername
!credits
!love projectid
!unlove projectid
!fave projectid
!unfave projectid
!studio studioid