Introduce list predicates

[avegera]

Acceptance

• Implementation of the following common list predicates should be added (place in the same Predicates.java class):
  • isEmpty
  • notEmpty
  • hasSize
  • notHaveSize
  • contains
  • notContain
• Initial support of the following expression builder should be added:

where().list(User::roles).isEmpty();

• All object predicates from Implement initial version of object predicates #1 should be inherited:

where().list(User::roles).isEqualTo(someList);
where().list(User::roles).isNull();
where().list(User::roles).notNull();
...