Reintroduce hOpenPGP
Reintroduce hOpenPGP

Unblocked by ixset-typed and incremental-parser

jonschoning/stackage,peti/stackage,mstksg/stackage,iand675/stackage,lwm/stackage,spencerjanssen/stackage,mrkkrp/stackage,simonmichael/stackage,asr/stackage,michalkonecny/stackage,int-index/stackage,Shimuuar/stackage,creichert/stackage,wereHamster/stackage,ethercrow/stackage,massysett/stackage,Daniel-Diaz/stackage,athanclark/stackage,clinty/stackage,fpco/stackage,mgajda/stackage,soenkehahn/stackage,stackbuilders/stackage,fimad/stackage