Admin Analytics: Group or filter by department/team/organization

Created by: mike-r-mclaughlin

Requested by: https://github.com/sourcegraph/accounts/issues/3

Feature request description

Group or filter analytics by team/organization.

Is your feature request related to a problem? If so, please describe.

Each team/group within a large organization would like to know about the usage of their individual team. For example, a large organization might have multiple LOBs and within each LOB there are multiple subgroups. Each of those subgroups is committing to a set of licenses. And, they would like to see if and how their users are using Sourcegraph.

Additionally, admins also want to see if new groups are using Sourcegraph so additional training can be set up.

Additional context

This likely requires additional work for Sourcegraph to import the team/LOB/group/etc. data from their SSO provider.