Created by: jayroh
Often times a layperson using a dashboard can be misled when they look
at a record's creation/update time and not realize it's rooted in the
UTC timezone. This commit adds the option to display Field::DateTime
fields as being within a provided timezone.
Also - update the documentation to contain the two options for that
field: :format and :timezone.
Note: By default the timezone in that field is not explicitly set as UTC.