Update dependency dot-object to v2

Author: renovate-bot

package.json

@@ -27,7 +27,7 @@
     "b64-to-blob": "^1.2.19",
     "core-js": "^2.4.1",
     "deepmerge": "^2.0.1",
-    "dot-object": "^1.7.0",
+    "dot-object": "2.1.4",
     "fabric": "^2.2.4",
     "file-saver": "^1.3.8",
     "hammerjs": "^2.0.8",
@@ -47,7 +47,7 @@
     "@angular/compiler-cli": "6.1.10",
     "@angular/language-service": "6.1.10",
     "@types/deepmerge": "^2.1.0",
-    "@types/dot-object": "^1.5.0",
+    "@types/dot-object": "2.1.2",
     "@types/fabric": "file:./fabric-types",
     "@types/file-saver": "^1.3.0",
     "@types/hammerjs": "^2.0.35",