Changelog:
* Fixed crash when running host key tests.
* Handles server connection failures more gracefully.
* Now prints JSON with indents when -jj is used (useful for debugging).
* Added MD5 fingerprints to verbose output.
* Added -d/--debug option for getting debugging output; credit Adam Russell.
* Updated JSON output to include MD5 fingerprints. Note that this results in a breaking change in the 'fingerprints' dictionary format.
* Updated OpenSSH 8.1 (and earlier) policies to include rsa-sha2-512 and rsa-sha2-256.
* Added OpenSSH v8.6 & v8.7 policies.
* Added 3 new key exchanges: gss-gex-sha1-eipGX3TCiQSrx573bT1o1Q==, gss-group1-sha1-eipGX3TCiQSrx573bT1o1Q==, and gss-group14-sha1-eipGX3TCiQSrx573bT1o1Q==.
* Added 3 new MACs: hmac-ripemd160-96, AEAD_AES_128_GCM, and AEAD_AES_256_GCM.
edc1905c12