NoTask - Added specific data aggregate endpoints

Added endpoints for specific data aggregates
- /data/audience/queries/{dim2}
- /data/audienceActivity/queries/{dim2}
- /data/channelMetrics/queries/{dim2}
- /data/impressions/queries/{dim2}
- /data/ownerActivity/queries/{dim2}

Endpoints have been broken up to mimic the existing specific data volume endpoints file

Ran rubocop and rspec
- 101 files inspected, no offenses detected
- 41 examples, 0 failures