hOpenpgp-tools doesn't work since GnuPG 2.1

Originally created by @goupille on #16387 (Redmine)

GnuPG 2.1 is storing keys in _{/.gnupg/pubring.kbx, hOpenpgp-tools
needs them to be in}/.gnupg/pubring.gpg so it ends up in an error.

Edited May 15, 2020 by goupille

To upload designs, you'll need to enable LFS and have an admin enable hashed storage. More information