[touch] Add handler for multitouch protocol A and B. JB#33644

The existing touch screen input event handling in mce is implemented in
several places and in general does handle differences between A and B
protocols in robust manner - and assumes that there will be only one
touch/mouse input device available.

Implement logic for tracking touch input state / double tap detection in
a manner that allows the code to be re-used for several input devices
when/if needed.

.depend

@@ -898,6 +898,14 @@ modules/usbmode.pic.o:\
 	mce-log.h\
 	mce.h\
 
+multitouch.o:\
+	multitouch.c\
+	multitouch.h\
+
+multitouch.pic.o:\
+	multitouch.c\
+	multitouch.h\
+
 powerkey.o:\
 	powerkey.c\
 	builtin-gconf.h\

Makefile

@@ -291,6 +291,7 @@ MCE_CORE += mce-command-line.c
 MCE_CORE += mce-conf.c
 MCE_CORE += datapipe.c
 MCE_CORE += mce-modules.c
+MCE_CORE += multitouch.c
 MCE_CORE += mce-io.c
 MCE_CORE += mce-lib.c
 MCE_CORE += evdev.c
@@ -575,6 +576,8 @@ NORMALIZE_USES_SPC =\
 	modules/radiostates.h\
 	modules/sensor-gestures.c\
 	modules/usbmode.c\
+	multitouch.c\
+	multitouch.h\
 	ofono-dbus-names.h\
 	powerkey.c\
 	powerkey.h\