added ts dev dependencies

Author: emin93

template/package.json

@@ -8,19 +8,31 @@
   },
   "dependencies": {
     "react": "16.8.1",
-    "react-native": "1000.0.0"
+    "react-native": "0.60.0"
   },
   "devDependencies": {
     "@babel/core": "^7.3.3",
     "@babel/runtime": "^7.3.1",
     "@react-native-community/eslint-config": "^0.0.3",
+    "@types/jest": "^24.0.15",
+    "@types/react": "^16.8.23",
+    "@types/react-native": "^0.57.65",
+    "@types/react-test-renderer": "^16.8.2",
     "babel-jest": "^24.1.0",
     "jest": "^24.1.0",
     "metro-react-native-babel-preset": "^0.51.1",
-    "react-test-renderer": "16.8.1"
+    "react-test-renderer": "16.8.1",
+    "typescript": "^3.5.2"
   },
   "jest": {
     "preset": "react-native",
-    "moduleFileExtensions": ["ts", "tsx", "js", "jsx", "json", "node"]
+    "moduleFileExtensions": [
+      "ts",
+      "tsx",
+      "js",
+      "jsx",
+      "json",
+      "node"
+    ]
   }
 }