[AAE-7819] Change column order - enable drag and drop for datatable - [1/3] (#7567)

* [AAE-7819] Enable drag and drop for datatable [1/3]

* [AAE-7819] Change column order - load and save columns order preferences for PROCESSES - [2/3] (#7568)

* [AAE-7819] Load and save column order preferences for processes

* [AAE-7819] Load and save column order preferences for tasks [3/3] (#7569)

* fix css

* fix icon module import

* Fix unit tests

* Fix test

* Fix e2e

* Fix C279927

lib/core/data-column/data-column.component.ts

@@ -25,6 +25,9 @@ import { Component, ContentChild, Input, OnInit, TemplateRef } from '@angular/co
 })
 export class DataColumnComponent implements OnInit {
 
+    @Input()
+    id: string = '';
+
     /** Data source key. Can be either a column/property key like `title`
      *  or a property path like `createdBy.name`.
      */
@@ -45,6 +48,10 @@ export class DataColumnComponent implements OnInit {
     @Input()
     sortable: boolean = true;
 
+    /* Enable drag and drop for header column */
+    @Input()
+    draggable: boolean = false;
+
     /** Display title of the column, typically used for column headers. You can use the
      * i18n resource key to get it translated automatically.
      */