Create CarSetupWizardTheme

Created a CarSetupWizardTheme and related button styles. Added
Secondary Continue Button. Imported necessary resources and parent
styles from the Car Support Library.

Test: bat_land-userdebug builds
Test: Manual - styling of CarSetupWizard is as expected
Fixes: 67505986
Change-Id: If20e330c44e17828a24ee261e9fa4327c3bd494b