Split packages into platform and extensions

extensions/vtk/src/toolbarModule.js

@@ -0,0 +1,39 @@
+const TOOLBAR_BUTTON_TYPES = {
+  COMMAND: 'command',
+  SET_TOOL_ACTIVE: 'setToolActive',
+};
+
+const definitions = [
+  {
+    id: 'Crosshairs',
+    label: 'Crosshairs',
+    icon: 'crosshairs',
+    //
+    type: TOOLBAR_BUTTON_TYPES.SET_TOOL_ACTIVE,
+    commandName: 'enableCrosshairsTool',
+    commandOptions: {},
+  },
+  {
+    id: 'WWWC',
+    label: 'WWWC',
+    icon: 'level',
+    //
+    type: TOOLBAR_BUTTON_TYPES.SET_TOOL_ACTIVE,
+    commandName: 'enableLevelTool',
+    commandOptions: {},
+  },
+  {
+    id: 'Rotate',
+    label: 'Rotate',
+    icon: '3d-rotate',
+    //
+    type: TOOLBAR_BUTTON_TYPES.SET_TOOL_ACTIVE,
+    commandName: 'enableRotateTool',
+    commandOptions: {},
+  },
+];
+
+export default {
+  definitions,
+  defaultContext: 'ACTIVE_VIEWPORT::VTK',
+};