Add HTTP API support

[TonySkorik]

While integrating Qdrant in our workflows I've built the Qdrant's HTTP API client. For the sake of completeness I think it would be great to add an HTTP implementation to this client as well.

My Qdrant HTTP client repo is located here -> https://github.com/aliexpressru/qdrant-client

I will be happy to connect and contribute parts that you find interesting (if any 😊).