TToCheckable - add possibility to manage switch to next state

[LANDAISB]

Currently, TToCheckable, like ToToggleButton, automatically switchToNextState when there is a click on it.

Sometimes we use ToToggleButton to represent a state on our model.
And a click on this button just ask for a state changing. It can be a long action and sometimes fail (for some reasons).
So we don't want to change state directly on click, but only change state if and when we received an acknowledge.
Is it possible to add a flag to prevent switchToNextCheckState action ?

[plantec]

the last commit in the dev branch fixes it with TToCheckable>>#switchToNextCheckStateOnClick and TToCheckable>>#switchToNextCheckStateOnClick: aBoolean

[LANDAISB]

Thanks !