This commit also fixes a cargo-audit warning

By default, warp includes multipart and websockets support.

We don't need either yet, so we might be better off
by not asking them in the first place (including time to compile).

- Included an example showing how to serialize and deserialize with Serde and DGraph

* remove all rweb-related code
* add warp as the HTTP server
* add logging
* isolate `internal_api` to allow collaboration on separate methods

* remove all rweb-related code
* add warp as the HTTP server
* add logging
* isolate `internal_api` to allow collaboration on separate methods