Query builder (3 of 3): Refactor aggregates

[jrhoads]

Purpose

Refactor aggregates into their own builder. Introduces a new option include_aggregates which can be a list of aggregate keys that will create a sub-set of aggregates to be included in the query.

This only applies to the GraphQL search query but the methods could become a template for aggregates in the REST API search query.

• Bug fix (non-breaking change which fixes an issue)

• New feature (non-breaking change which adds functionality)

• Breaking change (fix or feature that would cause existing functionality to change)

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