Add textproc/py-elasticsearch-dsl: High level Python client for Elasticsearch

• Repocopy from textproc/py-elasticsearch-dsl-py (v0.0.11)
• Update to 6.1.0
• PORTNAME equals to PyPI-name (Python Ports Policy)

Version 6 (6.x.y) is for Elasticsearch 6.0 and later.

PR: 227794
Submitted by: Jeremy Baggs <jbaggs2016@gmail.com>