authenticateUsingBiometry doesn't increase fail counter

[hvge]

If biometric authentication fails in authenticateUsingBiometry function, then the fake biometry factor key is not generated. The result is that fail counter is not increased on the server. This bug may affect our react-native clients, because the function is used internally to pre-authorize biometry in case of reusable authentication object is requested.

The implementation should be simple - just move the logic that determine that fake key should be generated from signatureKeysForAuthentication into biometryRelatedKeyWithAuthentication function.

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On top of that, we may implement a few nice enhancements to the function. Right now, our react-native wrapper suffer with issue that if biometry is requested on iOS simulator, then there's no biometry dialog displayed. This is because on simulator, the direct access to the biometry protected keychain item always succeed, with no dialog displayed. On opposite to that, if LAContext.evaluatePolicy is used, then biometric dialog is properly displayed and the developer can decide whether it should fail or success.

So, we should reimplement authenticateUsingBiometry with using LAContext with the following benefits:

• RN wrapper will properly show biometric dialogs on iOS simulators
• We can properly handle situations mentioned in Docs: Add workaround notice when biometry is canceled in non-standard way #272 and RequestSignature success when application will enter background #271