Debugging Elasticsearch Connection

[Kefaun2601]

Task Description

Most of the Elasticsearch implementation has already been written. There are still two major problems that need to be resolved:

1. ElasticsearchResultIterator needs to implement deserialize(). We are having an issue with creating an instance of a generic type.
2. Debug data persistence to make sure that the data in Elasticsearch is being updated properly.

Updates will be posted as progress is made.

Related PR #225