Time datatype

[PriyaDoIT]

When working on adding crash data to WG, we found that there may be some datasets where it may be beneficial to the user to search on date and time separately. Currently for most datasets, epoch time is used.

In order to do this, we will need to add a new dataype, Time. Development efforts would include adding more customization the query builder component and potentially the code that generates the Mongo DB filter. All of this work would be on the UI/client side.

Note: this feature would be applicable to both WG and OG.