Investigate using the open source elastic search javascript libraries

ElasticSearch provides an apache licensed open source javascript library for working with elasticsearch.

Much of the searchlight-ui provides the Domain specific binding from OpenStack concepts (resource types), horizon tools (magic-search) & searchlight concepts (defined facets with a specific format). However, some of it is just doing queries. We should see if there is value to be gained for leveraging the elasticsearch.js library

https://github.com/elastic/elasticsearch-js

One of the challenges is it is not clear how horizon plugins should manage dependent libraries.