add stackage entries for base64 and base64-lens
add stackage entries for base64 and base64-lens

michalkonecny/stackage,stackbuilders/stackage,asr/stackage,soenkehahn/stackage,clinty/stackage,jonschoning/stackage,fpco/stackage,athanclark/stackage,fimad/stackage,simonmichael/stackage,massysett/stackage,spencerjanssen/stackage,mrkkrp/stackage,iand675/stackage,Daniel-Diaz/stackage