fix: add tslib to dependencies

Author: Laszlo Radics

package.json

@@ -31,7 +31,8 @@
     "moment": "^2.15.1",
     "pg": "7.3",
     "pg-query-stream": "^1.0.0",
-    "through": "~2.3.8"
+    "through": "~2.3.8",
+    "tslib": "^1.8.0"
   },
   "devDependencies": {
     "@types/jasmine": "~2.5.35",

yarn.lock

@@ -2868,6 +2868,10 @@ trim-right@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/trim-right/-/trim-right-1.0.1.tgz#cb2e1203067e0c8de1f614094b9fe45704ea6003"
 
+tslib@^1.8.0:
+  version "1.8.0"
+  resolved "https://registry.yarnpkg.com/tslib/-/tslib-1.8.0.tgz#dc604ebad64bcbf696d613da6c954aa0e7ea1eb6"
+
 tunnel-agent@^0.6.0:
   version "0.6.0"
   resolved "https://registry.yarnpkg.com/tunnel-agent/-/tunnel-agent-0.6.0.tgz#27a5dea06b36b04a0a9966774b290868f0fc40fd"