openbor Tools

Add nopause, nosave, noscreenshot to openborvariant/changeopenborvariant. (Scripted cut scene, etc).

- Script function shutdown (exit game).
- Add several openborvariants properties.

Fix a mistake in previous update (relback=1 after 'PRESS START' was changed to 0 by mistake).

- Experimental command skiptoset in levels.txt, skip system menu and intro directly to a specific set, for advanced usage.
- skipselect command now allow empty argument list, used to by pass the default select screen without forcing the player to choose a character.

Pad bitmap struct same as screen for psp, just in case.

- Add missing else in function anim_list_delete.
- Enable @include for level txt.

New command @include, parse a text file for model txt.

- Fix a score script crash bug.
- Fix a mistake in last build, which crashed when unloading models.

- Write another version of anim_list_delete for the free_model crash problem to see if makes any difference on xbox.
- Remove 4096 size limit for images.
- Add preprocessor switch for PSP memory alignment fix in types.h.

- Another attempt to fix psp screen problem.
- Print more debug messages to trace some mysterious crash without error messages.