#9917: show reset brush default buttons
Puts a preference in Tool Options -> Show reset to brush default button TRUE by default, when FALSE the GUI for brushes is simpler.
It's a feature I never use, but adds to the width and complexity of a dockable that's nearly always on display for me.
My workflow does not use it because I click the tool preset to reset the options to the tool preset. I never want to restore to the loaded brush.
Many other user will use it, so it's there by default.
In combination with #1170 (closed)
Edited by Mark Sweeney