Sorts and filters

Gridifier can sort and filter inserted collections of items with build or custom functions, as well as resort or refilter all already rendered items. Sort helpers and multiple filters are available too. Library supports additional type of sorting called 'retransformSorters', and has many built-in sorters of such type.(For example, 'byArea', 'byOrientation' sorters allows to repack items in such way, that no gaps will exist in grid)