New wiki pages

[NFG]

I've been working on some new stuff.  Well, old stuff, but now better!

The PC Engine pad.  2 buttons done so far, I've been delayed 'cause I had to create the connector component for the schematic app:
http://gamesx.com/wiki/doku.php?id=controls:pc_engine_controller

Megadrive 3-button pad schematic:
http://gamesx.com/wiki/doku.php?id=controls:megadrive_genesis_controller_3

controller encoder chips:
http://gamesx.com/wiki/doku.php?id=chips:chip_pinouts

They're WIPs, but I think they're good starts!  The MD and PCE pad pages on gamesx.com have been in SERIOUS need of a rewrite since, well, since forever.  =(