splinter-3.0-bp151.3.1

- Add upstream_add_armv8.patch and update spec to fix build for aarch64
- Restrict build to x86* and aarch64

- Upgrade RPM groups; trim descriptions.

- Fix package groups: shared library -> System/Libraries, devel
  package -> Productivity/Scientific/Math.

- Properly implement shared library packaging policy.
- Use fdupes to link duplicated files.
- Correct packaging groups.
- Use cmake macros for build, make and install stages.

- Update to version 3.0.

- Initial package.