Feature: CAPM3 should support "bridge" configuration via Metal3DataTemplate

[s3rj1k]

User Story

As a user I would like to have ability to configure bridge NICs via Metal3DataTemplate

Detailed Description

CAPM3 should support "bridge" configuration via Metal3DataTemplate similarly to how "bond" configuration is now supported

Anything else you would like to add:

Cloud-init supports configuring "bridge" NICs, Metal3DataTemplate lacks this support now

/kind feature

[Rozzii]

/triage accepted
Based on the discussion on the community meeting on 2025.Dec.17. I find it useful and more like a missing feature that is actually supported under the hood already.