[Bug] 'expirationDate' field is serialized incorrectly due to the use of Gson.

The 'expirationDate' field in 'org.opengroup.osdu.core.common.model.legal.Properties' is serialized incorrectly due to the use of Gson.

This is the value we get using Gson: {"expirationDate": "Dec 31, 2099"}

And this is the value we get using Jackson: {"expirationDate": "2099-12-31"}

Gson serializes java.sql.Date into format "MMM d, yyyy" while our date format is "yyyy-MM-dd".