Entitymapper

* **MapIteratorResultSet update**. Some more methods was implemented, because there is need in them.
* **IntegerFilter enhacement**. Enhancement that allows to get <code>int</code> values from columns of another types containing values compatible with <code>int</code> type.
* **EntityFilters**. All available filters was collected into the <code>EntityFilters</code> class following the sample of such classes in Guava. Obsolete filters was marked <code>@Deprecated</code> and linked to new corresponding methods.