fix #1608 with touch coordinates detection

Some kobo touch devices have X Y coordinates in touch events swapped.
This patch provides a GUI to probe if the device needs to swap the XY.
The Kobo Touch users will be directed to tap on the upper right corner
of the screen and the probe will check if the X value is smaller than
the Y value in the tap event.

reader.lua

@@ -112,7 +112,7 @@ if G_reader_settings:readSetting("night_mode") then
     Screen:toggleNightMode()
 end
 
--- restore kobo frontlight settings
+-- restore kobo frontlight settings and probe kobo touch coordinates
 if Device:isKobo() then
     local powerd = Device:getPowerDevice()
     if powerd and powerd.restore_settings then
@@ -121,6 +121,9 @@ if Device:isKobo() then
         powerd:setIntensityWithoutHW(intensity)
         -- powerd:setIntensity(intensity)
     end
+    if Device:getCodeName() == "trilogy" then
+        require("utils/kobo_touch_proble")
+    end
 end
 
 if ARGV[argidx] and ARGV[argidx] ~= "" then