2.5.0

Rev-2021101001 Brian Davis slimm609@gmail.com
* update to 2.5.0
* split checksec into multiple files for easier maintenance and debugging
* remove space between options and only support = until refactor can happen
* Add pre-commit-checks
* update License.txt to include BSD license
Thanks @mr-segfault
* Move to new Arch Linux docker images
Thanks @Maryse47
* Add photon support for tests
* Check journalctl -k for NX protection
Thanks @Tatsh
* improve debug formatting
Thanks @bmwiedemann
* Fix shellcheck warnings and style issues
Thanks @a1346054