[SL-1711] [Feature] Support resolution of time dimension grain when using Dimension() object syntax about metricflow HOT 3 OPEN

One thing to add is that the use of {{ Dimension... }} and {{ TimeDimension... }} in filters inconsistent.

We need to be able to create a filter with:

• No grain, no date part ("exact date" in tableau)
• Only grain (DATE_TRUNC query in tableau)
• Only date part (EXTRACT query in tableau)

Currently, it seems like each syntax supports some (different) subset of these scenarios. I think either one or both of the different syntax should be able to cover all 3 scenarios.

from metricflow.

@jordan.stein to see if this is fixed

from metricflow.

Good one to followup on when caching is done.

from metricflow.