Added support for Pokken controller and iBuffalo SNES gamepad

Added configs for for the Pokken Tournament controller and the iBuffalo
USB SNES gamepad

iBuffalo_SNES_USB_gamepad.ini

@@ -0,0 +1,19 @@
+//iBuffalo SNES USB Gamepad
+[vid=0x0583,pid=0x2060]
+
+//DPad
+DPAD_MODE			=	DPAD_Absolute_2Values
+VPAD_BUTTON_DPAD_ABS_UP		=	0x01,	0x00
+VPAD_BUTTON_DPAD_ABS_DOWN	=	0x01,	0xFF
+VPAD_BUTTON_DPAD_ABS_LEFT	=	0x00,	0x00
+VPAD_BUTTON_DPAD_ABS_RIGHT	=	0x00,	0xFF
+
+//Buttons
+VPAD_BUTTON_A			=	0x02,	0x01
+VPAD_BUTTON_B			=	0x02,	0x02
+VPAD_BUTTON_X			=	0x02,	0x04
+VPAD_BUTTON_Y			=	0x02,	0x08
+VPAD_BUTTON_PLUS		=	0x02,	0x80
+VPAD_BUTTON_MINUS		=	0x02,	0x40
+VPAD_BUTTON_L			=	0x02,	0x10
+VPAD_BUTTON_R			=	0x02,	0x20

pokken_controller.ini

@@ -0,0 +1,29 @@
+//Pokken Tournament Controller
+[vid=0x0f0d,pid=0x0092]
+
+//DPad
+DPAD_MODE			=	DPAD_HAT
+DPAD_MASK			=	0x0F
+VPAD_BUTTON_DPAD_Neutral	=	0x02,	0x0F
+VPAD_BUTTON_DPAD_N		=	0x02,	0x00
+VPAD_BUTTON_DPAD_NE		=	0x02,	0x01
+VPAD_BUTTON_DPAD_E		=	0x02,	0x02
+VPAD_BUTTON_DPAD_SE		=	0x02,	0x03
+VPAD_BUTTON_DPAD_S		=	0x02,	0x04
+VPAD_BUTTON_DPAD_SW		=	0x02,	0x05
+VPAD_BUTTON_DPAD_W		=	0x02,	0x06
+VPAD_BUTTON_DPAD_NW		=	0x02,	0x07
+
+//Buttons
+VPAD_BUTTON_A			=	0x00,	0x04
+VPAD_BUTTON_B			=	0x00,	0x02
+VPAD_BUTTON_X			=	0x00,	0x08
+VPAD_BUTTON_Y			=	0x00,	0x01
+VPAD_BUTTON_PLUS		=	0x01,	0x02
+VPAD_BUTTON_MINUS		=	0x01,	0x01
+VPAD_BUTTON_L			=	0x00,	0x10
+VPAD_BUTTON_R			=	0x00,	0x20
+
+//Triggers
+VPAD_BUTTON_ZL			=	0x00,	0x40
+VPAD_BUTTON_ZR			=	0x00,	0x80