Allow the option to make field filter values required

Fix GA queries

Remove duplicate Fields specified in both Fields and Breakouts

Deduplicate :cols :name keys in QP results 

Quieter tests

Make sure GA metrics come back with correct type info

Query results metadata: we don't need to check for empty names any more

Fix EntityListLoader

Merge pull request #8750 from metabase/bucket-datetime-order-bys-referencing-breakout-fields-if-needed

Bucket order-bys referencing bucketed breakout fields if needed

Fix GA (part 2)

Make sure expression aggregations come back with name

Insights: add nil guards

Xrays: correctly handle nested [field-id] expressions

Trendlines: change fit metric to MAE

Fix GA queries with multiple filters