Add methods to enable query caching

[beikov]

The properties for enabling query caching are different among the JPA providers. It should be possible to enable query caching on the query builder level as well as on a TypedQuery. DML queries can't support that obviously. Support for queries containing CTEs, Set operations or other advanced features can be deferred to a separate issue as the cache invalidation of Hibernate might not get all the dependants correctly in that case.