Ambiguity is always zero when simulating

[JochemvdBroek]

I noticed that the ambiguity of all the poses were zero when running a simulation with the VisionSystemSim, both for single and multi tag results.
I recall that the ambiguity definitely wasn't continuously zero when I ran some simulations in the 2024 version.
That is why I started digging through the code and looking back at old commits and found the following change:

169595e#diff-4a856975e9c0da1c15f66bdc57f7b98300693006a3d290f49c91f9cbed48f7cdL426

Line 426 in PhotonCameraSim.java was changed from OpenCVHelp.solvePNP_SQUARE to solvePNP_SQNP.
This last method defaults the reproduction error to an empty matrix, which I think is the cause of the issue with the ambiguity ratio being zero.

I don't know the exact reason behind this change, but it would be nice if the simulation would once again take into account ambiguity.

[amquake]

@mcm001 SQPNP does not report ambiguity and seemed similar or worse for single-tag estimation ime, was there a reason this was changed?