Preferences dialog for Windows

We got a new preferences dialog for our MBS FileMaker Plugin on Windows. It allows you to see the plugin version and allows to install a license key locally, which is saved to the registry as with StoreRegistration function:

As the dialog on MacOS, we may show the license state, e.g. demo with no license, trial license or purchased license.
Over the next release we may tweak the dialog a bit. Currently it makes trouble if you click on FileMaker window and the dialog moves to background.