- Save and correctly restore console input mode, ie. do not
change settings of the original console.
- Fix hiding of cursor.
- Free console again if the driver actually created a new one.
- Default canvas size is current window size.
- Base calculation on current font.
- Properly handle press and release events of up to 5 mouse buttons.
- Map right mouse button to button #3. This is a change in behaviour,
which is desirable for cross-platform codes.
- Generate two click events for double mouse clicks.
- Mouse wheel support, creates button press events. Button numbers
are identical to X11 mappings.
- Handle window buffer resize events.