Bulldog initializes PIN value with Signal.Low despite it's current value

[sbunciak]

E.g. assuming that PIN P1_11 has been set to high outside of Bulldog, the following will fail:

Board board = Platform.createBoard();
DigitalOutput outputPin = board.getPin("P1_11").as(DigitalOutput.class);

assertEquals(outputPin.getAppliedSignal(), Signal.High);