[bug#31531] Update monero to 0.12.0.0.

[Theodoros Foradis]

This patch series updates monero and monero-core to 0.12.0.0 and adds
cppzmq package.

 gnu/local.mk                                  |  1 +
 gnu/packages/finance.scm                      | 35 
++++++++++++++++++++++-------------
 gnu/packages/networking.scm                   | 28 ++++++++++++++++++++++++++++
 gnu/packages/patches/monero-fix-version.patch | 16 ++++++++++++++++
 4 files changed, 67 insertions(+), 13 deletions(-)
 create mode 100644 gnu/packages/patches/monero-fix-version.patch
 gnu: monero-core: Update to 0.12.0.0.
 gnu: monero: Update to 0.12.0.0.
 gnu: Add cppzmq.
-- 
Theodoros Foradis