Summary:
Currently, to generate a `Release` build in `Android` it is required to get into the `android` directory and run the `react native bundle`with a lot of options and after that run the `gradle` to assemble or install the application with the build type `Release`.
This PR improves the process adding that feature to the `React Native CLI`.
To generate a release build is only required to use the parameter `--configuration` with the value `Release`.
**Examples**
To generate a release build:
```sh
react-native run-android --configuration release
```
To generate a release build for the product flavors staging:
```sh
react-native run-android --configuration release --flavor staging
```
To generate a debug build:
```sh
react-native run-android
```
To generate a debug build for the product flavors staging:
```sh
react-native run-android --flavor staging
```
This PR also removes the option `--install-debug` from the `react-native run-android` because that is always the default value,
Closes https://github.com/facebook/react-native/pull/10867
Differential Revision: D4167203
Pulled By: cpojer
fbshipit-source-id: c5ac07f81feeeea00ee0e8b059b46ef0d258a1a6
2a2d3c6e5a