feat: Add 3d object rendering using open3d

[JonatanNevo]

Implementation for issue #351

This is a WIP, I cannot get open3d to behave nicely with multithreading so I am rendering each image one at a time and it takes a while.

If anyone has any suggestions I would love to hear it

[CyanVoxel]

I'm afraid that this appears to almost instantly segfault for me, so I'm unable to test or help out with this implementation as it is...
The new core imports also need to be prepended by src., so they'll look something like "from src.core.utils.singleton import Singleton" - this was something I needed to do in order for the program to even start.

Also related, but there's a new thumbnail cacher being added in #694 which also touches the renderer codebase quite a bit, which should at least alleviate some of what you were trying to do here.

[JonatanNevo]

I'm afraid that this appears to almost instantly segfault for me, so I'm unable to test or help out with this implementation as it is... The new core imports also need to be prepended by src., so they'll look something like "from src.core.utils.singleton import Singleton" - this was something I needed to do in order for the program to even start.

Also related, but there's a new thumbnail cacher being added in #694 which also touches the renderer codebase quite a bit, which should at least alleviate some of what you were trying to do here.

Yeah I will wait for the caching mechanism and then continue working on this, this is why I put this as a draft