Updating lodash to non vulnerable version

v4.17.11 -> v4.17.15

Author: FoxtrotPerry

package.json

@@ -19,7 +19,7 @@
   "homepage": "https://github.com/FoxtrotPerry/MVH#readme",
   "dependencies": {
     "eslint": "^5.12.1",
-    "lodash": "^4.17.11",
+    "lodash": "^4.17.15",
     "moment": "^2.24.0",
     "p5": "^0.7.2",
     "react": "^16.7.0",