[Feature Request] Playbook Attr granting also grants attr descriptions when set.

[philote]

For Attribute grants from playbooks:

• I can see some cases where it would be nice to be able to set the attribute description as well as its value on a playbook grant.

[mclemente]

How big do you need the field to look like? Is this enough?

[philote]

That should work for the things that I was envisioning.