Add macros to grant roles access to schemas and tables

[brendagutman]

Add macros to grant roles access to schemas and tables

• Macros were added that will automatically run after new schemas are created, which will grant permissions to defined developer roles.
• A macro was added to allow easy permission granting for new users.
• Macro documentation was added to the _macros.yml
• The dbt_profiles.yml file was updated to implement the dev macros.
• An ADR was added to describe the design strategy.

Type of change

• New feature (non-breaking change which adds functionality)
• This change requires a documentation update

How Has This Been Tested?

@a-l-holmes and I ran dbt models using the code and were given permissions.
Permissions checked via sql query.

Checklist

• I ensured that all tables have proper source and ref definitions
• I Defined {{ config(schema=[schema name], tags = [list, of, tags]) }} at
  the start of each script
• I have performed a self-review of my own code
• I have checked my code and corrected any misspellings
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• I have added tests that prove my fix is effective or that my feature
  works
• My code follows the style guidelines of this project
• My changes generate no new warnings
• New and existing unit tests pass locally with my changes
• I have committed any related changes to the PR
• Run sqlfluff fix on tables that are created or modified in this PR.

[chris-s-friedman]

instead of GRANT SELECT, INSERT, UPDATE, DELETE ON ALL TABLES why not GRANT ALL ON ALL TABLES

[brendagutman]

Before using this method of granting permissions to warehouse objects, I'd like to get feedback from those who know more about our warehouse security procedures. I'd like to ensure this method will not be short circuiting process' we rely on for data security.