feat(package): add loopback-jest

Author: Walker Leite

template/package.json

@@ -66,6 +66,8 @@
     "gulp-connect": "^5.0.0",
     "gulp-sourcemaps": "^2.6.0",
     "jest": "^22.4.4",
+    "jest-plugins": "^2.9.0",
+    "loopback-jest": "^1.3.0",
     "tfilter": "^1.0.1",
     "through2": "^2.0.3",
     "tmp": "0.0.33",