Add support for Qdrant vector store

Qdrant - https://github.com/qdrant/qdrant, is an open-source vector search engine and database, governed by the Apache-2.0 license.

Qdrant ranks amongst the most performant and most used vector databases available today.

• https://qdrant.tech/benchmarks/
• https://ossinsight.io/collections/vector-search-engine/

This is a proposal to add support for Qdrant via an extension in NiFi.

Associated pull-request: https://github.com/apache/nifi/pull/8590