* Fix an issue where run_tests tried to run tests from upstream. Fix by @DStebila
* No longer checking spdx on files copied from upstream
* Added compiler checking for gcc. Must be at least 9.4.0.
* Added pqclean's aarch64 optimized kyber implementation to liboqs
* stripping asimd flag for ARM64_V8 as it isn't needed and will cause errors when trying to specify it during compilation
* Updated kyber docs
* Updated kyber markdown so that no-secret-dependent-branching-checked-by-valgrind correctly says false for the new aarch64 implementation
* Added automated updating of legacy yaml format, and added some yaml files which don't get automatically updated
* Fixed a bug where optimized upstreams would use the primary upstream's supported platform
* Fixed a bug with copy_from_upstream.py's verify function where it would always use the default upstream location when comparing with diff
* Added reporting for implementations that are in upstream but aren't yet integrated into liboqs
* Added support to ignore implementations from upstream in copy_from_upstream.yml. This is to prevent implementations that haven't been integrated into LIBOQS yet from being pulled in by copy_from_upstream.py. It also silences the warning when verifying.
* Adding updated ymls and md files for docs
* copy_from_upstream.py now also calls update_docs_from_yaml.py
