Add support for the "ipv6 nd prefix" path (#303)

Upstream documentation:
https://help.mikrotik.com/docs/display/ROS/IPv6+Neighbor+Discovery#IPv6NeighborDiscovery-Prefix

changelogs/fragments/303-add-ipv6-nd-prefix.yml

@@ -0,0 +1,2 @@
+minor_changes:
+  - api_info, api_modify - add support for the ``ipv6 nd prefix`` path (https://github.com/ansible-collections/community.routeros/pull/303).

plugins/module_utils/_api_data.py

@@ -3697,6 +3697,22 @@ PATHS = {
             },
         ),
     ),
+    ('ipv6', 'nd', 'prefix'): APIData(
+        unversioned=VersionedAPIData(
+            fully_understood=True,
+            fields={
+                '6to4-interface': KeyInfo(default='none'),
+                'autonomous': KeyInfo(),
+                'comment': KeyInfo(can_disable=True, remove_value=''),
+                'disabled': KeyInfo(default=False),
+                'interface': KeyInfo(required=True),
+                'on-link': KeyInfo(default=True),
+                'preferred-lifetime': KeyInfo(),
+                'prefix': KeyInfo(),
+                'valid-lifetime': KeyInfo(),
+            },
+        ),
+    ),
     ('ipv6', 'nd', 'prefix', 'default'): APIData(
         unversioned=VersionedAPIData(
             single_value=True,

plugins/modules/api_info.py

@@ -174,6 +174,7 @@ options:
         - ipv6 firewall nat
         - ipv6 firewall raw
         - ipv6 nd
+        - ipv6 nd prefix
         - ipv6 nd prefix default
         - ipv6 route
         - ipv6 settings

plugins/modules/api_modify.py

@@ -183,6 +183,7 @@ options:
         - ipv6 firewall nat
         - ipv6 firewall raw
         - ipv6 nd
+        - ipv6 nd prefix
         - ipv6 nd prefix default
         - ipv6 route
         - ipv6 settings