config, dialog, widgets: Tool Preset Editor, current tool icon size
Adds an extra preference option to set the size of the icon displayed by the Tool Preset Editor:
Tools Options -> Tool Preset Editor
Sets the size of the image bigger than it was for the icon picker.
Also added an extra parameter to the icon picker function, to determine if the icon created should be a tool preset sized icon.
This allows the two other cases where it is called to use a different sized icon, see dynamics editor and template editor.
The default setting in the MR for sizing the Icon
Edited by Mark Sweeney