* Added ECC and RSA intermediate CA's and server/client chain certificates for testing.
* Enhanced suites test to support expected fail arg `-H exitWithRet` in any test .conf file.
* Added new `test-altchains.conf` for testing with `WOLFSSL_ALT_CERT_CHAINS` defined.
* Added new `test-chains` for testing chains.
* Added new `test-dhprime.conf` for DH prime check tests.
* Added new `test-trustedpeer.conf` for testing `WOLFSSL_TRUST_PEER_CERT`.
* Refactor to add `-2` to disable DH prime check by default (except for new test-dhprime.conf).
* Added ability to run a specific test.conf file using syntax like `./tests/unit.test tests/test-altchains.conf`.
adds SrpGenPublic() and SrpSetPrivate() with unit tests;
fixes k with left pad at g;
adds new error SRP_CALL_ORDER_E to force the functions to be called in the right order.
api tests refectory with ifdef and prototypes cleaning + use of asserts. Now, if the tests fails, it will point the line error and expected behavior like this:
ERROR - tests/api.c line 715 failed with:
test: server_args.return_code is true
result: server_args.return_code => FALSE
