Implement http server

[markwylde]

In v7 the http server is the main entrypoint into the database.

In v8 this has changed, as the client driver now uses pure tcp to query the database, splitting the protocol into internal and external modes.

One of the things I've liked about canhazdb is how easily you can just point an http client to the database when developing, get query your database.

v8 will implement an optional (and none default) http query server. The syntax should be exactly the same as v7.

It should be implemented as a module and activated behand an option flag.

• GET
• SEARCH
• POST
• PUT
• PATCH
• DELETE