Implement ActivityCompat permission request callback.

[mansourmoufid]

In order to request permissions from the user interactively, implement the OnRequestPermissionsResultCallback interface.

This follows the sample code in the android/permissions-samples repository.

PR Checklist:

• [x] All new features have been tested
• [ ] All new features have been documented
• [x] I have read the CONTRIBUTING.md file
• [x] I will abide by the code of conduct

[mhsmith]

Replaced by #83.