Enable BBR config allowas-in 1 for internal peers
Why I did:
To advertise BBR routes learnt via e-BGP peer in one asic/namespace to another iBGP asic/namespace via Route Reflector.
- Why I did it
Update the routine is_bgp_session_internal() by checking the BGP_INTERNAL_NEIGHBOR table.
Additionally to address the review comment #5520 (comment)
Add timer settings as will in the internal session templates and keep it minimal as these sessions which will always be up.
Updates to the internal tests data + add all of it to template tests.
- How I did it
Updated the APIs and the template files.
- How to verify it
Verified the internal BGP sessions are displayed correctly with show commands with this API is_bgp_session_internal()
* Initial commit for BGP internal neighbor table support.
> Add new template named "internal" for the internal BGP sessions
> Add a new table in database "BGP_INTERNAL_NEIGHBOR"
> The internal BGP sessions will be stored in this new table "BGP_INTERNAL_NEIGHBOR"
* Changes in template generation tests with the introduction of internal neighbor template files.
