Stability, files and Windows/Mac builds

This version fixes a lot of villager issues, you might still need to talk to a villager once or twice before their changes come into effect, but it verifies everything correctly now. You also can't edit a villager that hasn't moved in yet.

I've also added functionality for saving("sharing" on mobile)/loading certain NHSE-format files. These include *.nhi (inventory), *.nhv (villager) and *.nhvh (villager house). This should work across all platforms.

Just for this release, I've included Windows and Mac builds. The aspect ratio and functionality is the same as a mobile build.