feat(cubesql): Aggregation over dimensions support #15208

Job	Run time
latest-tag-sha	25s
lint	5m 33s
unit (14.x)	10m 15s
integration-cubestore (16.x)	41m 27s
unit (16.x)	9m 2s
build	6m 47s
unit (18.x)	8m 25s
Build & Test :dev for Debian without pushing	19m 37s
integration-smoke (16.x)	52m 27s
docker-image-latest-set-tag	7s
integration-redis (16.x)	5m 41s
integration (16.x, clickhouse)	4m 56s
integration (16.x, druid)	5m 22s
integration (16.x, elasticsearch)	4m 43s
integration (16.x, mssql)	4m 59s
integration (16.x, mysql)	5m 13s
integration (16.x, postgres)	4m 30s
integration (16.x, prestodb)	4m 40s
integration (16.x, mysql-aurora-serverless)	4m 2s
integration (16.x, crate)	3m 58s
integration (16.x, mongobi)	3m 35s
	3h 25m 44s

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