This release brings rudimentary "splat editing" tools, mostly intended to remove unwanted / unneeded splat areas.

A new scene view tool shows up in the scene toolbar whenever a GS object is selected. It allows to do rectangle-drag selection, similar to regular Unity scene view (drag replaces selection, shift+drag adds to selection). Select All, Invert Selection shortcuts work. Delete / Backspace deletes the selected splats. "F" key to frame focuses on current selection.

When the GS object is "edited", there's a button in Inspector to export the edited result back into a gaussian splat PLY file.

Short video of all of this: https://www.youtube.com/watch?v=MKIGtEIjRi0

Other minor things:

• Selected splat asset quality preset and output folder is persisted in preferences.
• Nicer naming of generated splat assets.