Bump sigplot to 2.0.0-rc19

Author: Michael Recachinas

package.json

@@ -28,10 +28,14 @@
     "test": "jest --coverage"
   },
   "dependencies": {
+<<<<<<< HEAD
     "grunt": "^1.3.0",
     "react": "^16.13.1",
     "react-dom": "^16.13.1",
     "sigplot": "^2.0.0-rc18"
+=======
+    "sigplot": "^2.0.0-rc19"
+>>>>>>> Bump sigplot to 2.0.0-rc19
   },
   "jest": {
     "setupFiles": [