chore(NPM): bump version to 0.45.0-rc.1

Also point to correct flow-bin version and latest react-native@0.45.*

package.json

@@ -1,6 +1,6 @@
 {
   "name": "react-native-windows",
-  "version": "0.45.0-rc.0",
+  "version": "0.45.0-rc.1",
   "description": "React Native platform extensions for the Universal Windows Platform.",
   "license": "MIT",
   "repository": {
@@ -30,12 +30,12 @@
     "react-native": "~0.45.0-rc.2"
   },
   "devDependencies": {
-    "flow-bin": "^0.40.0",
+    "flow-bin": "^0.45.0",
     "https-proxy-agent": "^1.0.0",
     "jasmine": "^2.5.2",
     "jasmine-reporters": "^2.2.0",
     "react": "16.0.0-alpha.12",
-    "react-native": "~0.45.0-rc.2",
+    "react-native": "~0.45.0",
     "selenium-webdriver": "2.48.x"
   },
   "dependencies": {