Plots should handle Infinity gracefully

[akhenry]

Summary

Plots will currently fail to render a trace completely if it includes any infinite values. Infinite values can sometimes occur in telemetry where a calculation involves division by zero.

Expected vs Current Behavior

The easiest thing to do for now is probably treat it in the same way we do NaN - that is, don't plot it and instead show a data gap.

Steps to Reproduce

1. Create a Sine Wave Generator object
2. View the Sine Wave Generator in a plot
3. Modify the Sine Wave Generator object to randomly return Infinity
4. Observe that no data is returned at all. Compare this to the case where NaN is returned and observe that the plot will render the real numbers, with gaps for the NaNs

Environment

• Open MCT Version: 2.0.8
• Deployment Type: local dev

Impact Check List

• Data loss or misrepresented data?
• Regression? Did this used to work or has it always been broken?
• Is there a workaround available?
• Does this impact a critical component?
• Is this just a visual bug with no functional impact?
• Does this block the execution of e2e tests?
• Does this have an impact on Performance?

Additional Information

[akhenry]

Downgrading to critical as this shouldn't block the 2.0.8 release.

[michaelrogers]

Fix verified during testathon 12/28/2022 locally against release/2.1.5. Plots handle infinity values without affecting the Y axis autoscaling.

[unlikelyzero]

@unlikelyzero to find the original telemetry value from yamcs

[unlikelyzero]

Couldn't find one. Closing as this may only be reproduced in theoretical circumstances