[netconf] [ssh/tls]-client-server updates

[Kent Watsen <[e-mail]>]

Detailed change logs for the just-published updates are at bottom, but the primary update is the creation of IANA-maintained modules for protocol-specific algorithms.  Key points:

	1) identities are used (not enumerations)

	2) the “container” and “list” names are simply 
	    “supported-algorithm[s]”  as the module’s 
	    namespace disambiguates them from
	    each other.

	3) deprecated and obsolete algorithms have
	    their “status” node set accordingly.


After waiting a sufficient amount of time for WG-review, it would be appropriate to request SecDir reviews, per Tom’s comment from before.

Thanks,
Kent


ssh-client-server:

   *  Renamed "{ietf-ssh-client}userauth-*" to "client-ident-*"

   *  Renamed "{ietf-ssh-server}userauth-*" to "local-user-auth-*"

   *  Moved algorithms in ietf-ssh-common (plus more) to IANA-maintained
      modules

   *  Added "config false" lists for algorithms supported by the server.

   *  Fixed issues found during YANG Doctor review.


tls-client-server:

   *  Added TLS 1.3 references.

   *  Clarified support for various TLS protocol versions.

   *  Moved algorithms in ietf-tls-common (plus more) to IANA-maintained
      modules

   *  Added "config false" lists for algorithms supported by the server.

   *  Fixed issues found during YANG Doctor review.