Specialized queries Support

[prafsoni]

https://www.elastic.co/guide/en/elasticsearch/reference/6.8/specialized-queries.html Add support for Specialized queries

• [x] more_like_this query
• [x] script query
• [x] percolate query
• [x] wrapper query

[prafsoni]

Resolved with 9ff08734932bfc2cdeb43b0ad0a0751f52a42266