skin_engine: Automatically create touch regions for skin bars

skin bars now automatically create the touch region the same size
as the bar on touchscreen targets. This means touches will
magically "just work" for reveresed bars (rtl or otherwise).

~5% padding is added on all 4 sides of the region rectangle but
this may need to be tweaked.

Please consider the 'progressbar' and 'volume' touchregion actions
to be deprecated.

Kudos to my new wife for figuring out the bleedingly obvious way to
do this!

Change-Id: I997a7bcaa70fce9885808aae27953c7676e9c2ff

wps/cabbiev2.240x320x16.mini2440.wps

@@ -8,7 +8,6 @@
 %T(46,292,84,24,menu)
 %T(139,292,24,24,shuffle)
 %T(182,292,24,24,repmode)
-%T(22,254,199,13,progressbar)
 %X(wpsbackdrop-240x320x16.bmp)
 %xl(A,lock-240x320x16.bmp,11,292,2)
 %xl(B,battery-240x320x16.bmp,46,292,10)

wps/cabbiev2.240x400x16.wps

@@ -7,7 +7,6 @@
 %X(wpsbackdrop-240x400x16.bmp)
 %Cl(55,50,130,130,c,c)
 %pb(22,284,199,13,pb-240x320x16.bmp)
-%T(22,284,199,13,progressbar)
 %T(90,238,60,20,playlist)
 %?Tl(2.5)<%Vd(t)|%Vd(u)>
 %V(0,0,240,330,1)

wps/cabbiev2.320x240x16.mrobe500.wps

@@ -6,7 +6,6 @@
 %T(0,207,84,24,menu)
 %T(218,211,24,24,shuffle)
 %T(261,207,24,24,repmode)
-%T(10,162,300,15,progressbar)
 %X(wpsbackdrop-320x240x16.bmp)
 %xl(A,lock-320x240x16.bmp,91,207,2)
 %xl(B,battery-320x240x16.bmp,126,207,10)

wps/cabbiev2.320x480x16.wps

@@ -63,7 +63,6 @@
 # progressbar and bottom icons
 %V(0,360,-,-,-)
 %pb(20,11,280,-,pb-320x480x16.bmp)
-%T(20,0,280,40,progressbar)
 
 #%?mh<%xd(Aa)|%xd(Ab)>
 #%?bp<%?bc<%xd(Ba)|%xd(Bb)>|%?bl<|%xd(Bc)|%xd(Bd)|%xd(Be)|%xd(Bf)|%xd(Bg)|%xd(Bh)|%xd(Bi)|%xd(Bj)>>

wps/cabbiev2.800x480x16.wps

@@ -49,7 +49,6 @@
 # progressbar and bottom icons
 %V(0,323,-,33,-)
 %pb(25,0,750,-,pb-800x480x16.bmp)
-%T(25,0,750,50,progressbar)
 
 # volume
 %V(344,400,108,60,-)