fix(Grouping): Draggable Grouping cols reorder missing `impactedColumns`

[ghiscoding]

• Draggable Grouping reimplements enableColumnReorder grid option and also the onColumnsReordered SlickEvent, the later one was missing the impactedColumns argument needed by Slickgrid-Universal to reorder and/or freeze columns

Fixes issue shown in animated gif below

[stackblitz[bot]]

Run & review this pull request in StackBlitz Codeflow.

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 99.8%. Comparing base (9e2dd65) to head (4e378ad).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #1557 +/- ## ======================================= Coverage 99.8% 99.8% ======================================= Files 198 198 Lines 21691 21691 Branches 6979 7253 +274 ======================================= Hits 21630 21630 + Misses 61 55 -6 - Partials 0 6 +6 ```

:umbrella: View full report in Codecov by Sentry.
:loudspeaker: Have feedback on the report? Share it here.