Build 4

What's new:

• - updated save/load system
  • added delete option to clear slots
  • view button doesn't work yet - still working on that scene however you can just use the edit button to see your saved terrarium build - and now the terrain and substrate material/texture are also saved and loaded as well as rock positions, scale, etc. Before only the rock prefabs were being saved and loaded

• - updated rock system
  • rocks are now saved and loaded with different sizes and orientations and positions
  • updated rock ui added a delete mode toggle feature to delete placed rocks, they highlight in red
  • updated rock ui added a "sink" mode where you can sink rocks into the ground - you can raise and lower up to the original height they were placed at.
• - updated music feature
  • now music is persistent across all scenes, I put an actual (free use) music file instead of the default one it had, you can control mute or play sound from menu and the change is saved across scenes.

problems:
I cant get the save panel to close after saving automatically, I've tried a ton of different things for a couple hours and still can't get it to work, you have to click cancel button after you save to close the panel