This PR adds the original error codes from libssh2 and additional error descriptions to the custom error definitions. Since libssh2 does not provide more details on their error codes, these descriptions were derived from how errors are used by libssh2.
This PR adds the original error codes from libssh2 and additional error descriptions to the custom error definitions. Since libssh2 does not provide more details on their error codes, these descriptions were derived from how errors are used by libssh2.