Summary:
If we move the permissions into the library itself, the manifest
merger will take care of adding them to consuming applications,
making setup instructions easier.
## Changelog
Move required permission declarations into flipper-core
Pull Request resolved: https://github.com/facebook/flipper/pull/593
Test Plan:
Using aapt we can dump the permissions of a sample app.
`$ANDROID_HOME/build-tools/29.0.2/aapt d permissions sample-debug.apk `
```
package: com.facebook.flipper.sample
uses-permission: name='android.permission.WRITE_EXTERNAL_STORAGE'
uses-permission: name='android.permission.INTERNET'
uses-permission: name='android.permission.ACCESS_WIFI_STATE'
uses-permission: name='android.permission.READ_EXTERNAL_STORAGE'
uses-permission: name='android.permission.FOREGROUND_SERVICE
```
Reviewed By: priteshrnandgaonkar
Differential Revision: D18006323
Pulled By: passy
fbshipit-source-id: c4cf28ee698faa3e2b631462f2953976135b299c
cc19cc75ee