* feat: 🎸 Progressive volume loading for vtk viewport (#1055)

* feat: 🎸 Progressive volume loading for vtk viewport

Adds progressive volume loading for vtkjs viewport whilst the frames are
streamed from PACs and rebuilt in the volume.

Closes: closes #1051

* Update to react-vtkjs-viewport 0.3.0

extensions/vtk/package.json

@@ -48,7 +48,7 @@
   },
   "dependencies": {
     "@babel/runtime": "^7.5.5",
-    "react-vtkjs-viewport": "^0.1.6"
+    "react-vtkjs-viewport": "^0.3.0"
   },
   "devDependencies": {
     "@ohif/core": "^1.4.0",