feat: support for route tables & routes

[kewalaka]

Overview/summary

This introduces support for route tables & routes. It has been added to support the default route issue, but is generic so can be used to create any route table & route.

I have kept it pinned to azapi 1.11 noting the changes required to bump to 1.13.1

This PR fixes/adds/changes/removes

1. fixes feat: 'default' udr for new subscriptions #218

Breaking changes

n/a new change

Testing evidence

I have tested this on my integration branch here, based on the following inputs (and no input)

deployed;

As part of this pull request I have

• Checked for duplicate Pull Requests
• Associated it with relevant issues, for tracking and closure.
• Run and make fmt & make docs to format your code and update documentation.
• Created unit and deployment tests and provided evidence. edit - yes to deployment tests
• Updated relevant and associated documentation.

I'm not familiar with the unit test approach, guidance would be appreciated 😊