We need an API to search for existing community pages. This API will be used by users on platform to search for existing community pages and by moderators to quickly find communities.

We currently have communities.Communities.ListCommunities and communities.Communities.GetCommunity based upon the community_id but we don't have a way to search by keyword.

The primary use case will be users searching for communities based upon keywords (like "USA" or "United States"), but another may be moderators who search by the community_id. The search should query the various community name values in the database.

In a future iteration we will want to enable advanced searching, for example to filter results based upon parent (eg countries vs regions vs cities vs neighborhoods).