Throws exception IN query for empty arrays

[ersanceylan]

It throws syntax error at or near ")" if you set an empty array for IN query.
This should be fixed by checking whether given array is empty or not when adding new criteria and simply it can be discarded as we applied so for null values.

[destan]

we need to add some checks here

also we should use in(String key, Object value, RelationType relationType) method in in(String key, Object value) so that null and empty checks are not duplicated.

in in(String key, Object value, RelationType relationType) we need following checks:

• value is not null
• value is of type Iterable or Array
• value is not an empty array or empty iterable

also consider making the type of value parameter to Iterable and also provide an overloaded version with Object[]