auth/signup library

1. connect_flutter package
2. documentation
3. auth/signup.dart

connect_flutter package

1. Libraries
2. auth/auth
3. auth/signin
4. auth/signup
5. consent/about_client
6. consent/consent
7. consent/consent_info
8. error/error
9. main
10. main/footer
11. main/main_screen
12. service/connect_service
13. service/softcorp_service