Add support for Layer Triggers

[haata]

Please add support to the configurator.

Layer[1] : <result>; # Triggers on any layer 1 activation
LayerShift[2] : <result>; # Triggers on layer 2 shift activation
LayerLatch[3] : <result>; # Triggers on layer 3 latch activation
LayerLock[4] : <result>; # Triggers on layer 4 lock activation