Add an upper bound on base in codeworld-api
Add an upper bound on base in codeworld-api

This is required for the hackage release.

google/codeworld,pranjaltale16/codeworld,parvmor/codeworld,nomeata/codeworld,parvmor/codeworld,three/codeworld,stefan-j/codeworld,venkat24/codeworld,tgdavies/codeworld,pranjaltale16/codeworld,alphalambda/codeworld,google/codeworld,three/codeworld,venkat24/codeworld,nomeata/codeworld,tgdavies/codeworld,stefan-j/codeworld,alphalambda/codeworld,three/codeworld,pranjaltale16/codeworld,tgdavies/codeworld,stefan-j/codeworld,alphalambda/codeworld,venkat24/codeworld,google/codeworld,parvmor/codeworld,nomeata/codeworld