[OHIF-193 + OHIF-313] (#1955)

* create context menu

* OHIF-193: Add context menu integration with measurement service

* OHIF-193: Update comments

* OHIF-CR Update: Add requested updates

* CR Update: Update measurement service remove function

* CR Update: Update casing

* CR Updates

* Update cornerstone measurments when the label is edited in the measurement service.

* Implement click outside behavior

* Address reviewer comments.

Co-authored-by: Rodrigo Antinarelli <rodrigoantinarelli@gmail.com>
Co-authored-by: igoroctaviano <igoroctaviano@gmail.com>

platform/ui/src/components/index.js

@@ -1,5 +1,6 @@
 import Button from './Button';
 import ButtonGroup from './ButtonGroup';
+import ContextMenu from './ContextMenu';
 import DateRange from './DateRange';
 import Dialog from './Dialog';
 import Dropdown from './Dropdown';
@@ -41,6 +42,7 @@ import ThumbnailNoImage from './ThumbnailNoImage';
 import ThumbnailTracked from './ThumbnailTracked';
 import ThumbnailList from './ThumbnailList';
 import ToolbarButton from './ToolbarButton';
+import ContextMenuMeasurements from './ContextMenuMeasurements';
 import ExpandableToolbarButton from './ExpandableToolbarButton';
 import ListMenu from './ListMenu';
 import Tooltip from './Tooltip';
@@ -55,6 +57,7 @@ import ViewportPane from './ViewportPane';
 export {
   Button,
   ButtonGroup,
+  ContextMenu,
   DateRange,
   Dialog,
   Dropdown,
@@ -99,6 +102,7 @@ export {
   ThumbnailTracked,
   ThumbnailList,
   ToolbarButton,
+  ContextMenuMeasurements,
   Tooltip,
   TooltipClipboard,
   Typography,