Add contentView
Add WelcomeActivity to manifest.xml
Test, launch welcomeActivity from NfcActivity (pop up effect ?)
Add finish, no pop-up effect
Add some comment and fix import/indent
Implement Moka Access from WelcomActivity
Save first name in WelcomeActivity
TextWatcher called on each change. Check EditText on moka start
Save first name and last name from WelcomeActivity