Contribute rosdep rule for libgpgme11-dev

[jwon02]

This is required for encryption/decryption support for Bag class: ros/ros_comm#1206.

Web links to packages:
Arch: https://www.archlinux.org/packages/core/x86_64/gpgme/
Debian: https://packages.debian.org/search?keywords=libgpgme11-dev
Fedora: https://apps.fedoraproject.org/packages/gpgme-devel
Gentoo: https://packages.gentoo.org/packages/app-crypt/gpgme
Ubuntu: https://packages.ubuntu.com/search?keywords=libgpgme11-dev

[mikaelarguedas]

libgpgme11-dev has been discontinued in ubuntu as of yakkety in favor of libgpgme-dev so we need to explicitly call out Ubuntu distributions, everything up to xenial should use libgpgme11-dev and yakkety and later will use libgpgme-dev.
Same for Debian: jessie and before will have libgpgme11-dev and stretch and later will use libgpgme-dev

[jwon02]

Thank you @mikaelarguedas. Updated the PR as suggested.

[tfoote]

Thanks @jwon02 for the quick update. Could you add ubuntu artful and bionic too since we're looking forward toward melodic already. (Note keep alphabetical order so they'll be at the top of the list.)

pr updated, waiting to follow up changes before second review

[jwon02]

Thank you @tfoote. Added artful and bionic. I also removed digits 11 from the key to have libgpgme-dev.

[mikaelarguedas]

lgtm, thanks @jwon02 for the quick iteration