feat(packages): update tslib dependency to ^1.7.1 as this is the minimum version required for typescript 2.3.3 +

Author: alan-agius4

package.json

@@ -70,6 +70,6 @@
     "lodash": "4.x"
   },
   "dependencies": {
-    "tslib": "^1.6.1"
+    "tslib": "^1.7.1"
   }
 }