Added a python script to convert the json files into evp_test data.
Added a EVP_TEST_METHOD "KeyFromData" that can test failures when
loading raw keys. (The existing "PrivateKeyRaw" and "PublicKeyRaw"
were not fit for this purpose).
Reviewed-by: Paul Dale <ppzgs1@gmail.com>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/26885)