No handling for FINGERPRINT_ERROR_USER_CANCELED

[dimentiyinfo]

Hi

No handling for FINGERPRINT_ERROR_USER_CANCELED, so application can't find out about cancelling (so no ability to re-enable identifiing).

I propose to extend IdentifyListener() with onCancel() method

[dimentiyinfo]

Or at least remove FINGERPRINT_ERROR_USER_CANCELED from the condition.
For me, just FINGERPRINT_ERROR_CANCELED is ok to not fire onFailed() after cancelIdentify()

[dimentiyinfo]

#90