Desktop biometrics support (#119)

* Initial work on windows hello support

* Switch to use windows.security.credentials.ui UserConsentVerifier

* Fix linting warnings

* Remove unessesary supportsBiometric from lock screen

* Rename biometric.main to windows.biometric.main. Add abstraction for biometric.

* Add support for dynamic biometric text.

* Add untested darwin implementation

* Rename fingerprintUnlock to biometric

* Add new functions to cliPlatformUtils.service.ts.

* Hide login if biometric is not supported

* Export default for biometric.*.main.ts

* Remove @nodert-win10-rs4/windows.security.credentials

* Add build requirements to readme

* Auto prompt biometric when starting the application.

* Ensure we support biometric before trying to auto prompt.

* Fix review comments and linting errors

package.json

@@ -74,6 +74,7 @@
     "@angular/upgrade": "7.2.1",
     "@microsoft/signalr": "3.1.0",
     "@microsoft/signalr-protocol-msgpack": "3.1.0",
+    "@nodert-win10-rs4/windows.security.credentials.ui": "^0.4.4",
     "big-integer": "1.6.36",
     "chalk": "2.4.1",
     "commander": "2.18.0",