chore(release): publish [skip ci]

- @ohif/extension-cornerstone@2.0.0
 - @ohif/extension-dicom-html@1.0.0
 - @ohif/extension-dicom-pdf@1.0.0
 - @ohif/extension-vtk@0.50.21
 - @ohif/core@1.0.0
 - @ohif/viewer@2.0.0

extensions/vtk/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@ohif/extension-vtk",
-  "version": "0.50.20",
+  "version": "0.50.21",
   "description": "OHIF extension for VTK.js",
   "author": "OHIF",
   "license": "MIT",
@@ -51,7 +51,7 @@
     "react-vtkjs-viewport": "0.1.0"
   },
   "devDependencies": {
-    "@ohif/core": "^0.50.10",
+    "@ohif/core": "^1.0.0",
     "@ohif/ui": "^0.51.2",
     "cornerstone-tools": "^4.0.9",
     "cornerstone-wado-image-loader": "^3.0.0",