Add handling of raw_contacts

## 🚀 Feature Requests

Please include support for adding raw_contacts. These are basically pieces of contacts that are merged together.

### Contextualize the feature

Don't understand the question.
### Describe the feature

 This would help with projects adding lower level details to contacts.
Found some information [here](http://android-contact-id-vs-raw-contact-id.blogspot.com/) about raw_contacts.
### Platforms affected (mark all that apply)
- [ ] :iphone: iOS
- [x] :robot: Android