fix(MedicalColorPresets): add Blue to Red Rainbow preset

Need to add here as vtk.js colormaps are excluded from built bundle.

Author: PaulHax

src/vtk/MedicalColorPresets.json

@@ -1518,5 +1518,11 @@
         1,
         1
     ]
+   },
+   {
+      "ColorSpace" : "HSV",
+      "Name" : "Blue to Red Rainbow",
+      "NanColor" : [ 0.498039215686, 0.498039215686, 0.498039215686 ],
+      "RGBPoints" : [ 0, 0, 0, 1, 1, 1, 0, 0 ]
    }
 ]