In TT2, keyboard/gamepad navigation is implemented by moving the mouse
cursor using IZ command. It did not work in browsers where mouse cursor
could not be moved or when mouse movement was disabled from the menu.
Now IZ command updates the internal mouse coordinates even when the
cursor cannot be moved.
- nact.h and xsystem35.h no longer include scenario.h
- Removed `sys_*` aliases in nact.h
- sys_getString() and sys_getConstString() are moved to
scenario.c as sl_getString() and sl_getConstString()
- DEBUG_COMMAND macros are now defined in scenario.h
kichikuou