Implement `Caddy` API calls for DBMaker for a proxy server

[kunalvirwal]

DBMaker requires TCP calls to communicate to DB clients but these calls can't be routed by cloudflare for free or without multiple daemons running on both sides. For connection to DB Clients we can not reveal IPs of the server instances running DB Maker.

So a work around for the cloudflare issue is to use another secondary proxy server whose IP can be made public safely and run Caddy as a reverse proxy. Now whenever a new DB is created, DB Maker will make API calls to Caddy to add a new entry for the DB as Caddy allows TCP routing. A DNS-only A entry for the Caddy instance will also be created on cloudflare depending on the DB name given by the user.