Autofill is evolving into CredMan which means we need to update the settings to have CredMan providers. This CL adds CredMan equivalent classes to list the Credential Manager providers and allow the user to select a number of providers. Test: Manual & atest SettingsUnitTests & make RunSettingsRoboTests -j Bug: 253157366 Change-Id: Ice76187cfee91d844d211205b44b661acf2f6a44