op-mode: T2791: Add monitor traceroute explicit for ipv4-ipv6 and vrf

[sever-sever]

Add trace feature for ipv4 ipv6 vrf

vyos@r4-roll:~$ monitor traceroute 
Possible completions:
  <hostname>    Monitor path to destination in realtime
  <x.x.x.x>
  <h:h:h:h:h:h:h:h>
  ipv4          IPv4 fully qualified domain name (FQDN)
  ipv6          IPv6 fully qualified domain name (FQDN)
  vrf           Monitor path to destination in realtime via given VRF

[jack9603301]

vyos-1x/op-mode-definitions/traceroute.xml

Lines 155 to 192 in 57aad3a

	<node name="monitor">
	<children>
	<tagNode name="traceroute">
	<properties>
	<help>Monitor path to destination in realtime</help>
	<completionHelp>
	<list>&lt;hostname&gt; &lt;x.x.x.x&gt; &lt;h:h:h:h:h:h:h:h&gt;</list>
	</completionHelp>
	</properties>
	<command>/usr/bin/mtr "$3"</command>
	</tagNode>
	<node name="traceroute">
	<children>
	<tagNode name="vrf">
	<properties>
	<help>Monitor path to destination in realtime via given VRF</help>
	<completionHelp>
	<path>vrf name</path>
	</completionHelp>
	</properties>
	<children>
	<!-- we need an empty tagNode to pass in a plain fqdn/ip address and
	let traceroute decide how to handle this parameter -->
	<tagNode name="">
	<properties>
	<help>Track network path to specified node via given VRF</help>
	<completionHelp>
	<list>&lt;hostname&gt; &lt;x.x.x.x&gt; &lt;h:h:h:h:h:h:h:h&gt;</list>
	</completionHelp>
	</properties>
	<command>sudo /usr/sbin/ip vrf exec "$4" /usr/bin/mtr "$5"</command>
	</tagNode>
	</children>
	</tagNode>
	</children>
	</node>
	</children>
	</node>

I feel that your implementation is duplicated with the following code

[jack9603301]

If possible, code should be added to the above file

[c-po]

@sever-sever please merge your changes into op-mode-definitions/traceroute.xml

[sever-sever]

@sever-sever please merge your changes into op-mode-definitions/traceroute.xml

@c-po Done.