CToggleGroup. Originally when I added initialization for selectedID I didn't find out that -1 is used for "random" buttons. So as result I fixed uninitialized variable usage, but break initial button state change in RMG options because setSelected ignore state change request because it's see -1 button already marked as selected.
- implemented switch in settings screen
- implemented "0 speed", animation-free. *may* also work for player-owned heroes
- removed no longer used creature window switch
- renamed CAdventureMapButton to more expectable CButton
- merged CButtonBase into CButton
- created more generic class for clickable elements
- created more generic class for selectable elements
- renamed CHighlightableButton to CToggleButton
- renamed CHighlightableButtonsGrous to CToggleGroup
- minimized differences between API of all these classes
- removed all but one contructors in buttons, with same parameters across all classes