Inconsistent naming related to "Show Surface Temperature" checkbox

[pixelzoom]

There's some inconsistency in the naming associated with this checkbox, and it's unfortunately exposed by PhET-iO:

It is currently implemented in class SurfaceTemperatureCheckbox, with string showSurfaceTemperatureStringProperty, and tandem name surfaceTemperatureCheckbox. So the "Show" bit is sometimes there, sometimes not there.

Options:

(1) Do nothing.

(2) Rename class SurfaceTemperatureCheckbox to ShowSurfaceTemperatureCheckbox, and tandem surfaceTemperatureCheckbox to showSurfaceTemperatureCheckbox

(3) Rename showSurfaceTemperatureStringProperty to surfaceTemperatureStringProperty, change its key to "surfaceTemperature", and change its value to "Surface Temperature". (This string is not used in Molecules and Light, but might have been used in Greenhouse Effect prototype.)

@arouinfar what would you like to do?

[arouinfar]

Thanks @pixelzoom. I vote for option (2). Naming this control has been tricky. I would prefer to keep it "Show Surface Temperature" in the sim, and update the class and tandem names to match.

[pixelzoom]

@arouinfar please review, close if OK.

[arouinfar]

Looks good, thanks @pixelzoom.