SSP-1899 Fix Date inconsistencies and add more tests

This update fixes date inconsistencies, which caused certain dates to always fail, between Postgres and MSSQL. Liquibase has been added to change all the created and  modified dates to one single date ending in several zeros in its long form. Also, the Tag /facet test has been enhanced to be not dependent on order. Finally, another full reference test was added (StudentType) and more roles were added to the login functionality for future use. The test data doesn't include those roles at this time.