Change TouchpadDebugView color on touchpad button clicked

Send HardwareState of the touchpad to the TouchpadDebugView and
change the colour of the view each time the touchpad button is clicked

Bug: 363251709

Test: Manual testing by checking that the TouchpadDebugView changes
colour each time the Touchpad button is pressed and unit testing
to the verify the colour change by comparing the old colour of
the view with the new one.
flag: com.android.hardware.input.touchpad_visualizer

Change-Id: I54b9a627b67a2d674a12d34011deb1f8756ba2ca