[ODM] orderByDate

[wstrange]

The ODM generator generates orderBy for most string fields, but not for DateTime.

Dates are stored as iso formatted strings - a string based orderBy should work?

[wstrange]

[Meant to put this in the ODM thread - apologies - But I cant delete this..]

[rrousselGit]

There's already a PR for DateTime support. It's just currently waiting for another feature to land first