Covax demo Demo app 2 with Bar code scanning

1. Generate an alphanumeric barcode, you can use the link https://barcode.tec-it.com/en/Code128?data=t1110f01fgthy
2. From the register page, scan to make sure no patient exists with that id
3. If none, register patient
4. When done and back to register page, scan barcode again - should launch patient profile

Covax demo app with no barcode , tracking vaccine status.

Features :

1. No Patients - On launch
2. View navigation drawer - Logged in user, menu items
3. Sync Patients
4. View Patient List
5. View Patient profile - basic
6. Register new patient
7. Add Vaccine
8. View Status 1 - Partial Vaccination
9. View Status 2 - Fully Vaccinated

Alpha release

This alpha release was built on top of Android FHIR SDK and showcases
Features :

1. No Patients - On launch
2. View navigation drawer - Logged in user, menu items
3. Sync Patients
4. View Patient List
5. Register new patient - resource mapper initial version
6. View Patient profile - no content