Ability to set a masking policy on a tag

[d-ohare]

With the recent release of masking policies as supported resources, I would like the ability to set masking policies on the tag configs.
yml example:

tags:
- name: COST
  allowed_values: ['true']
  comment: Tag for cost related data.
  owner: ACCOUNTADMIN
  masking_policy:
    name: COST_POLICY

Titan would run:

 alter tag cost set
    masking policy cost_policy

This would help teams who leverage Snowflake's tag based masking policies to keep even more configuration within Titan.

Snowflake docs on tag based masking