Change sequence of steps:
'restore_isis_metric' after 'update_subscription' in order to target the
correct set of nodes (remaining + new).

If trunk_type is Leased, then BFD must be configured on that trunk
according to the policy.
The steps that are added will update the target loopback address of BFD
config on the remaining side when trunk type is Leased, and will be
skipped when trunk type is Dark_fiber.

Did a couple of adjustment for IP Trunk creation and modification. Added default values for nullable fields.

Aleksandr Kurbatov authored 11 months ago and Aleksandr Kurbatov committed 10 months ago

Optical checks split into 2 parts now:
- PRE
- POST
Hence 2 different functions for pre and post with diff args.

also condense migrations into a single one