Control logging in InputTransport using sysprops read at boot time

Also, split the DEBUG_TRANSPORT_ACTIONS tag into
DEBUG_TRANSPORT_PUBLISHER and DEBUG_TRANSPORT_CONSUMER, and add logging
for all published events for completeness.

Also, improve type, key event, and motion event loggging for
readability.

Bug: 193231132
Test: Manual, using adb commands to enable debug logs
Change-Id: Icae62629fb833aad2ed0f6ad9fa837e4ef9713c0