Add BundleID to VersionService

[LordTylus]

Hello there,

we do have multiple bundle identifiers to differentiate production, preproduction and testing app on the same device.

Some features, such as push notifications on iOS, require the Bundle Identifier to be used for sending push notifications. Sadly there currently is no way of retrieving it at runtime with already existing APIs.

The VersionService looks like a good location to provide such information.

Can this be added?