add entry for generator+iterator kata
add entry for generator+iterator kata

tddbin/katas,Semigradsky/katas,cmisenas/katas,rafaelrocha/katas,cmisenas/katas,rafaelrocha/katas,ehpc/katas,tddbin/katas,tddbin/katas,Semigradsky/katas,Semigradsky/katas,cmisenas/katas,ehpc/katas,ehpc/katas,rafaelrocha/katas