Correct date values in spatial field

https://issues.dp.la/issues/7630#note-18
Same as Georgia profile.
Fix population of format given invalid type

https://issues.dp.la/issues/7630#note-18
Format was not getting assigned if the original type string was
invalid in and of itself, but did map to a valid type.  Format
should be assigned in all cases where type does not exactly match
a valid DCMI type.