metis-5.1.0-150100.9.5.2

- Add support for gcc8/9 building (jsc#SLE-8604).

- Build HPC master package for 'examples'.

- add a examples subpackage which include graphs* file to test Metis

- Set default module version correctly when installing
  master package, unset when deinstalling the default library
  package.
- Fix %%post and %%postun scripts for HPC.
- Fix dependencies for HPC.
- Fix HPC modulefile:
  * Aibraries are always there when module file is installed.
  * Set PKG_CONFIG_PATH.
- Fix package group names.

- Remove dependency to a non-existing module package for HPC.

- Edit description to put time-sensitive wording into context.

- General spec file clean up.
- Touch-up to the HPC build.

- Implemented suse-hpc packaging
- Added metis-makefile-c-directives.patch
  - Provides cflags option to help provide metis native build process