Support expressions around subqueries in order by for PaginatedCriteriaBuilder

[Mobe91]

We must support the following for id queries (we do not support this in the CriteriaBuilder or SubqueryBuilder):
e.g. selectSubquery("a").fromblabla.end().page(0,1).orderBySubquery("MAX(a)", true, false)

For the id query we must extract the wrapping expression for the order by clause and apply it to the corresponding select alias (which must correspond to a subquery). E.g we then have

SELECT id, MAX(SELECT bla FROM bla) AS a ORDER BY a

[beikov]

Also add the following to the PaginatedCriteriaBuilder interface
SubqueryInitiator orderBySubquery(String expression, String alias, boolean ascending, boolean nullsFirst)

with a behavior so that the following will be possible:

orderBySubquery("MAX(s)", "s", true, false)
  .from(Person.class)
   // somecode
  .end()

results in the following idQuery

SELECT ..., MAX(SELECT ... FROM Person) AS any_alias FROM ... ORDER BY any_alias