unittest-cpp-2.0.0-bp156.4.5

- Add unittest-cpp-2.0.0-gcc12.patch: Fix build with GCC 12.
- Remove unittest-cpp-2.0.0.tar.xz: It is created at build time
  from obscpio.
- Remove unused project.diff.
- Refresh spec file.

- Add shared.patch to build shared libraries.

- update to version 2.0.0 (No upstream ChangeLog anymore)
- use git service because upstream tar ball lacks cmake files

- Update to 1.6.1:
  * see: /usr/share/doc/packages/unittest-cpp/ChangeLog
- Create a new spec file for building RPM

- Build UnitTest++ 1.4