[TIMOB-20145] Windows: Use default temporary pfx from make when no pfx found in project and deploying to emulator or device

The bundled make in Windows SDK has a set of default assets it packages apps with. One of those is a temporary PFX key. However, they only auto-insert it if the app has no apps manifest, but we generate that. So we need to add logic that for not distribution targets that require PFX/cert we should just use the temporary key transparently much as Visual Studio does. So for ws-local on 8.1 and for wp-emulator, ws-local, wp-device on 10.0 when no PFX is found, use this key and don't prompt.