Feat(eos_designs): Add support for virtual topologies constraints

[gmuloc]

Component(s) name

arista.avd.eos_designs

Proposed changes

Add

      wan_virtual_topologies:
        control_plane_virtual_topology:
          constraints:
            # Jitter requirement for this load balance policy in milliseconds.
            jitter: <int; 0-10000>
            # One way delay requirement for this load balance policy in milliseconds.
            latency: <int; 0-10000>
            # Loss Rate requirement in percentage for this load balance policy.
            # Value between 0.00 and 100.00 %
            loss_rate: <str>
        policies:
          application_virtual_topologies:
                constraints:
                  # Jitter requirement for this load balance policy in milliseconds.
                  jitter: <int; 0-10000>
                  # One way delay requirement for this load balance policy in milliseconds.
                  latency: <int; 0-10000>
                  # Loss Rate requirement in percentage for this load balance policy.
                  # Value between 0.00 and 100.00 %
                  loss_rate: <str>
           default_virtual_topology:
                constraints:
                  # Jitter requirement for this load balance policy in milliseconds.
                  jitter: <int; 0-10000>
                  # One way delay requirement for this load balance policy in milliseconds.
                  latency: <int; 0-10000>
                  # Loss Rate requirement in percentage for this load balance policy.
                  # Value between 0.00 and 100.00 %
                  loss_rate: <str>

How to test

molecule

Checklist

Repository Checklist

• My code has been rebased from devel before I start
• I have read the CONTRIBUTING document.
• My change requires a change to the documentation and documentation have been updated accordingly.
• I have updated molecule CI testing accordingly. (check the box if not applicable)

[carlbuchmann]

LGTM, small suggestion on refactoring, I'm also ok as is!
Tested with lab.