* Added authors and licenses and plugin access to crypto related files
* removed `rz_hash` and related files
* introduced `rz_msg_digest_*` with plugins
* updated all old methods with newer ones.
* added HMAC support to `rz-hash` (moved key option under `-K`)
* removed wrong algorithms on `woD`/`woE`
* fixed parity digest size
* fixed the behaviour on all hash functions
* added unit test for hash
* optimized code for HMAC key calculation
* removed hash legacy tests
