feat(segmentation mode): Add create, and export SEG with Brushes (#3632)

extensions/cornerstone/src/commandsModule.ts

@@ -18,7 +18,6 @@ import toggleStackImageSync from './utils/stackSync/toggleStackImageSync';
 import { getFirstAnnotationSelected } from './utils/measurementServiceMappings/utils/selection';
 import getActiveViewportEnabledElement from './utils/getActiveViewportEnabledElement';
 import { CornerstoneServices } from './types';
-import ImageOverlayViewerTool from './tools/ImageOverlayViewerTool';
 
 function commandsModule({
   servicesManager,
@@ -266,7 +265,6 @@ function commandsModule({
     toolbarServiceRecordInteraction: props => {
       toolbarService.recordInteraction(props);
     },
-
     setToolActive: ({ toolName, toolGroupId = null, toggledState }) => {
       if (toolName === 'Crosshairs') {
         const activeViewportToolGroup = toolGroupService.getToolGroup(null);