New Tekken 2 clone

New Clone Added
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Tekken 2 Ver.B (Japan, TES1/VER.C) [Any, The Dumping Union]
(MESS) new not working system [Al Kossow, Robbbert]
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Motorola M68HC05EVS
Created a mame sound device for netlist. Fixed an issue causing wild oscillations. Currently, pong has sample code for using the sound device. Uncomment "TEST_SOUND" in pong.c to hear a constant sound from a 7400 multivibrator. Sound is still WIP, but the proof of concept has been done. [Couriersud]