Move scheduler to dependencies

Summary: Fixes react-native-community/releases#116 (comment)

Reviewed By: gaearon

Differential Revision: D15901557

fbshipit-source-id: 653119c181585cf9a4a561b350c66bd10cb674bd

package.json

@@ -105,6 +105,7 @@
     "react-devtools-core": "^3.6.0",
     "react-refresh": "0.0.3",
     "regenerator-runtime": "^0.13.2",
+    "scheduler": "0.14.0",
     "stacktrace-parser": "^0.1.3",
     "whatwg-fetch": "^3.0.0"
   },
@@ -140,7 +141,6 @@
     "prettier": "1.17.0",
     "react": "16.8.6",
     "react-test-renderer": "16.8.6",
-    "scheduler": "0.14.0",
     "shelljs": "^0.7.8",
     "ws": "^6.1.4",
     "yargs": "^9.0.0"