Sort out HID Demo release

HID Demo release Squirrel release has been broken since we migrated to SDK style projects.
See how our [release script was called](https://github.com/Slion/SharpLibHid/blob/92657685606053c4c3e6e9f8aea521c6d3a3318f/Project/HidDemo.csproj#L324) during project build before.