errors: fix undefined HTTP2 and tls errors

Includes implementation of tls, HTTP2 error with documentation.

Backport-PR-URL: #22850
PR-URL: #21564
Refs: #21440
Reviewed-By: Matteo Collina <[email protected]>
Reviewed-By: Anatoli Papirovski <[email protected]>

Author: thatshailesh

doc/api/errors.md

@@ -826,6 +826,11 @@ send something other than a regular file.
 
 The `Http2Session` closed with a non-zero error code.
 
+<a id="ERR_HTTP2_SETTINGS_CANCEL"></a>
+### ERR_HTTP2_SETTINGS_CANCEL
+
+The `Http2Session` settings canceled.
+
 <a id="ERR_HTTP2_SOCKET_BOUND"></a>
 ### ERR_HTTP2_SOCKET_BOUND
 

lib/internal/errors.js

@@ -333,6 +333,7 @@ E('ERR_HTTP2_PSEUDOHEADER_NOT_ALLOWED', 'Cannot set HTTP/2 pseudo-headers');
 E('ERR_HTTP2_PUSH_DISABLED', 'HTTP/2 client has disabled push streams');
 E('ERR_HTTP2_SEND_FILE', 'Only regular files can be sent');
 E('ERR_HTTP2_SESSION_ERROR', 'Session closed with error code %s');
+E('ERR_HTTP2_SETTINGS_CANCEL', 'HTTP2 session settings canceled');
 E('ERR_HTTP2_SOCKET_BOUND',
   'The socket is already bound to an Http2Session');
 E('ERR_HTTP2_STATUS_101',