tslib added as a dependency

Author: Aniket-Engg

libs/remix-tests/package.json

@@ -54,6 +54,7 @@
     "merge": "^1.2.0",
     "signale": "^1.4.0",
     "time-stamp": "^2.2.0",
+    "tslib": "^2.3.0",
     "web3": "^1.2.4",
     "winston": "^3.0.0"
   },