OFBIZ-5146: added support for three new ModelViewEntity functions for the extraction of year, month, day from a date field: extract-year, extract-month, extract-day.
They are mapped to the Standard SQL:2011 EXTRACT function that is already supported by several DBMS including PostgreSQL and MySQL (but not yet Derby).



git-svn-id: https://svn.apache.org/repos/asf/ofbiz/trunk@1644348 13f79535-47bb-0310-9956-ffa450edef68