Refactor MemoryTracker to use SWR

package.json

@@ -72,7 +72,7 @@
     "promise-polyfill": "8.1.0",
     "promise.prototype.finally": "3.1.0",
     "q": "1.5.1",
-    "react": "16.9.0",
+    "react": "16.13.1",
     "react-animate-height": "2.0.8",
     "react-dnd": "9.4.0",
     "react-dnd-html5-backend": "9.4.0",
@@ -160,6 +160,7 @@
     "rimraf": "3.0.0",
     "sinon": "3.2.1",
     "style-loader": "0.23.0",
+    "swr": "0.3.2",
     "terser-webpack-plugin": "3.0.5",
     "ts-loader": "6.2.2",
     "tslint": "5.11.0",