### What does this do?
- Deprecates previous sim classes
- Has a `CameraProperties` class for describing a camera's basic/calibration info, and performance values for simulation. Calibration values can be loaded from the `config.json` in the settings exported by photonvision.
- `OpenCVHelp` provides convenience functions for using opencv methods with wpilib/photonvision classes, mainly to project 3d points to a camera's 2d image and perform solvePnP with the above camera calibration info.
- `TargetModel`s describe the 3d shape of a target, both for projecting into the camera's 2d image and use in solvePnP.
- `PhotonCameraSim` uses camera properties to simulate how 3d targets would appear in its view, and has simulated noise, latency, and FPS. For apriltags, the best/alternate camera-to-target transform is also estimated with solvePnP.
- `VideoSimUtil` has helper functions for drawing apriltags to a simulated raw and processed MJPEG stream for each camera using the projected tag corners.
- `VisionSystemSim` stores `VisionTargetSim`s and `PhotonCameraSim`s, and is periodically updated with the robot's simulated pose. When updating, camera sims are automatically processed and published with their visible targets from their respective poses with proper latency.
### What's still not working?
- Mac Arm builds are broken
- More examples
- Update website/docs
* WIP updating sim stuff for 2023 and pose3d's
* vision system build fixups, but test not yet passing.
* WIP Sim fixups and working on testcases
* Still doesn't work, but closer
* tests pass
* removed C++ sim support
* formatting update
* adjusted target height above ground per review
* Turns out its unused
* missed example removal
* WIP adding sim pose example
* WIP making examples buildable like WPI. Not quite there yet....
* Make examples runnable
* remove lock
* add lock
* WIP Adding a simpler example for simulation
* Spotless Apply
* Added simulation-supporting aim and range example
* Spotless, revised hand usage to be consistent across examples, and propagated required -1.0's to non-sim examples.
Co-authored-by: Prateek Machiraju <prateek.machiraju@gmail.com>
