Use @Authenticators.Types for authenticator selection

This CL adds "canAuthenticate(int)" to BiometricManager.

Currently, authenticators can be one or more of the following:
    DEVICE_CREDENTIAL
    BIOMETRIC_STRONG
    BIOMETRIC_WEAK

Test: Auth on existing devices
Test: atest com.android.server.biometrics

Bug: 141025588
Change-Id: Idf52c5a76a0e24a8610ee5f46d55cd4197605fe7