Database content type?

@toribr @Jo-Dwyer

### Various departments maintain document databases online that they want to make available to the public. For example, OPO maintains [records of police complaints](https://alpha.austin.gov/en/police-oversight/official-complaint-and-discipline-documents/#page=1), Boards and Commissions maintains [records of meeting agendas and minutes](http://www.austintexas.gov/department/boards-and-commissions), APH maintains [records of restaurant inspections](https://data.austintexas.gov/Health-and-Community-Services/Food-Establishment-Inspection-Scores/ecmv-9xxi), (CPIO?) maintains [common Public Records Requests](https://cty-austintx.govqa.us/WEBAPP/_rs/(S(1lw1wmu14ndtzdbl4gen2wqs))/BusinessDirectory.aspx?rqst=5). In order for those to be accessible, they need to be searchable.

**Is your feature request related to a problem? Please describe.**
The current way this is being handled on austintexas.gov is through the use of various micro-sites and data.austintexas.gov. This makes it so that the website lacks cohesion and doesn't look as professional. It also leads to weird website dead-ends such as this [Restaurant Inspection Score page](http://www.austintexas.gov/service/restaurant-inspection-scores) which is not tied to the [place where the restaurant inspection scores are housed without any context](https://data.austintexas.gov/Health-and-Community-Services/Food-Establishment-Inspection-Scores/ecmv-9xxi). Oh yeah, about two months later almost by happenstance I found a [searchable version](http://www.austintexas.gov/health/restaurant/search.cfm) of the data.

**Describe the solution you'd like**
I'd like our official documents content type to be fleshed out to more of a database content type. What that means to me is: tagging functionality and an automatically generated search bar at the top of that content type that searches only through the documents in that database.

**Describe alternatives you've considered**
We find one microsite that does this well and try to get everyone to use just that one? Is data.austintexas.gov? The latter is really not great.

**Additional context**
I think keeping accessibility at the center will be useful in thinking through this need. The current data.austintexas.gov site feels like a site where departments can dump a bunch of content to say that they've made it public, while actually putting it in a less accessible format than if a resident had to send an e-mail to request a document/information.