test suite

[nmav]

While in af_ktls-tool you have a testing tool, it may be better to automate the test suite on a simple make check command, that includes the unit tests, as well as stress test the subsystem.

[fridex]

related: https://github.com/fridex/af_ktls/pull/24

[fridex]

I think it would worth it to add check even for verifying implementation, e.g. running testing tool with all --verify-* options https://github.com/fridex/af_ktls-tool/blob/9d84a12/client.c#L126 This will need git submodules reorganization.