Profile Monitor Calibration Feature Size in YAML files

[eloiseyang]

Is your feature request related to a problem? Please describe.
The profile monitor GUI needs to display tooltips with the size of features on each device for calibration.

Describe the solution you'd like
Screen YAML files should contain the text of each tooltip, and the screen class should provide an easy way to access that text.

Describe alternatives you've considered
This information could be stored in the profile monitor GUI itself, but then the GUI would have to maintain its own list of every profile monitor rather than pulling from the YAML files.