Add more time grains (#5083)
Add more time grains (#5083)

* Add more time grains

* Use FLOOR

* Fix quotes for lint

apache/incubator-superset,apache/incubator-superset,timifasubaa/incubator-superset,airbnb/caravel,timifasubaa/incubator-superset,mistercrunch/panoramix,apache/incubator-superset,zhouyao1994/incubator-superset,zhouyao1994/incubator-superset,airbnb/caravel,airbnb/superset,zhouyao1994/incubator-superset,dmigo/incubator-superset,airbnb/caravel,airbnb/caravel,dmigo/incubator-superset,timifasubaa/incubator-superset,apache/incubator-superset,apache/incubator-superset,airbnb/superset,mistercrunch/panoramix,zhouyao1994/incubator-superset,zhouyao1994/incubator-superset,mistercrunch/panoramix,dmigo/incubator-superset,airbnb/superset,airbnb/superset,timifasubaa/incubator-superset,mistercrunch/panoramix,dmigo/incubator-superset