ospf6d: rework ospf6 neighbor state display

[fdumontet6WIND]

A separate function ospf6_neighbor_state_message() is created to return a string that stands for the neighbor kind: DR, BDR, DROther, or PointToPoint.

Add the following attributes in each neighbor of the vty command: 'show ipv6 ospf6 neighbor detail json'

• nbrPriority : integer
• Role: DR, BDR, DROther, or PointToPoint
• nbrState : /<Role> where: o Role is the above attribute o state is "None", "Down", "Attempt", "Init", "Twoway", "ExStart", "ExChange", "Loading", "Full"
• routerDeadIntervalTimerDueMsec: integer value otherwise "inactive"

Enter in a deprecation workflow for neighborState value, which is replaced by nbrState. Add the following attributes in each neighbor of the vty command: 'show ipv6 ospf6 neighbor json':

• nbrPriority : integer
• Role: DR, BDR, DROther, or PointToPoint
• nbrState : /<Role> where: o Role is the above attribute o state is "None", "Down", "Attempt", "Init", "Twoway", "ExStart", "ExChange", "Loading", "Full"
• routerDeadIntervalTimerDueMsec: integer value otherwise "inactive"

Enter in a deprecation workflow for state and priority values, which are replaced by nbrState.

and update related tests

[fdumontet6WIND]

ci:rerun

[fdumontet6WIND]

ci:rerun

[fdumontet6WIND]

ci:rerun

[fdumontet6WIND]

ci: rerun

[mwinter-osr]

CI:rerun Retest for new ASAN Memory Leaks

[fdumontet6WIND]

ci:rerun

[github-actions[bot]]

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