[sysid] Show warning tooltips next to bad feedforward gains instead of throwing

[HarryXChen3]

Refactors SysId error handling to not completely cancel analysis when bad feedforward gains are encountered but instead show a warning next to the specific gains that are invalid (with reasoning) - closes #6198. Also still needs to address #6248. #6248 should instead be addressed in a separate PR.

[HarryXChen3]

Looks like its mad about how I initialize some structs. I thought that maybe I could just leave the arguments I didn't need out to let them be default initialized, but it doesn't seem like its happy about that. Maybe that's only a thing in C++23? (is wpilib on C++11?)

[calcmogul]

WPILib uses C++20. You're probably looking for form (3) or (4) on https://en.cppreference.com/w/cpp/language/aggregate_initialization.

[HarryXChen3]

WPILib uses C++20. You're probably looking for form (3) or (4) on https://en.cppreference.com/w/cpp/language/aggregate_initialization.

Is the way im initializing structs with partially left out values to be "default" initialized only a thing in a newer version? My local setup must be also on an incorrect version then, since both intellisense and local builds are happy.

[calcmogul]

The syntax you wrote isn't a thing on any version. You have to write it like this instead:

      thing = {.field = newValue};

[HarryXChen3]

The syntax you wrote isn't a thing on any version.

Huh. I wonder why it still works 🤔. I'll make sure to address it on the next commit, though.

[HarryXChen3]

[ FAILED ] ElevatorSimulationTest.Teleop (97 ms)

I think this should be unrelated to my changes - is this a flaky test?

[calcmogul]

Yes. Ignore it.