Additional M22 features and fixes

• Updated documentation, including generated OpenAPI spec. Including documentation for #122 (closed)
• New optional group support for /boostrap and /tenant APIs. 121. By default it will use policy.service.admin but this can be changed with environment variable OPS_PERMISSION. Updated OpenAPI/swagger to show required permissions for all APIs as configured and related documentation. In future releases this will likely use a new group, but for now a new group is allowed. #121 (closed)
• Now that this API can be additionally protected work for /tenant can continue.
• Added X-Error response header for DELETE /tenant.
• Reformatted code
• Updated /info API to include commit message #67 (closed)
• Updated dependencies