absent: 'filter' inner tag to 'ext-columns' to enable the GridFilters plug in

[fabriciomurta]

Found: 7.2.0 Ext.NET forums' thread: EXT Grid panel grid filters - EXT.net Classic v 7.2

The GridFilters plugin lacks its extension to the ext-column component that adds an inner filter block to set up which type of filtering should be enabled to the column.

v5 example: Grid Filters local