SuperSplat file format

[simonbethke]

User story:
As user of SuperSplat I would like to open and save files that contain SuperSplat specific data.

Details:
It would be very helpful, if SuperSplat could come up with an own dataformat. This format could for example be a renamed zip-file without any compression (just as convenient container). As file-extension *.ssd would be funny "SuperSplat Data". The Zip-File would contain a main.json file and all splat-files that have been imported as ply files.
The main.json file should have these properties:

• one entry per splat-file with:
  • filename
  • transformation matrix (translation, rotation, scale)
  • visibility
• editor-camera-setup (transformation + fov)