Add new class for SetPropRule and move outside ShellCommandRule.

Clean up the mEnableInputTransportPublisherRule from TaplWidgetPickerTest since b/325377690 is fixed now.

This is follow up for ag/26419353.

Bug: 325377690
Test: Manual
Flag: NA
Change-Id: Id55000ac3cb4b88097ad00b97773c39a725711b8