gpgme: update to 2.0.1

gpgme: update to 2.0.1

Major version update from 1.24.2 to 2.0.1.

Major change: the C++ bindings (libgpgmepp), Qt bindings, and
Python bindings have been split off into separate packages
upstream. The libgpgmepp subpackage is dropped here too; consumers
that need C++ bindings will have to be ported once gpgme++ is
packaged separately.

Changes from 1.24.x -> 2.0.x:
 * New gpgme_op_random_bytes / gpgme_op_random_value functions
   to get cryptographically strong random data from gpg.
 * New decrypt flag to skip actual decryption so that
   information about recipients can be retrieved.
 * New flag for key generation to mark a (sub)key as group owned.
 * gpgme_signers_add: when key was retrieved with fingerprint!'!'
   suffix, the requested subkey is used for signing.
 * timestamp/expires fields changed from signed long to unsigned
   long for better 32bit time_t support.
 * Removed long-deprecated gpgme_attr_t enums and functions.
 * Removed never-implemented GPGME_EXPORT_MODE_NOUID flag.
 * Removed entire trustlist feature.

2.0.1:
 * Adjust for changes to the posix test(1) command.
 * Extend internal gpgsm_assuan_simple_command to consume diag
   output (fixes possible lockup).

Drop --enable-languages=cpp from configure args (no longer
supported), Build/InstallDev no longer copies the C++ headers,
cmake bits or libgpgmepp shared library, and remove the
libgpgmepp Package definition.

Link: https://dev.gnupg.org/source/gpgme/browse/master/NEWS
Signed-off-by: Daniel Golle <redacted>