Add Gyro support code, and make it build.

Conflicts:
	robocom/arduino/CMakeLists.txt
Added a message for moving a servo
Messages for Gyro subscription and readings.
Testing/debugging of Gyro code with client.
Merge commit '89a36ab4f948c791aa71e82299f38e5c44042cea' into atwyman

Conflicts:
	.gitignore
	robocom/arduino/CMakeLists.txt
	robocom/arduino/Gyro.hpp
	robocom/arduino/LogoCommands.hpp
	robocom/arduino/RobotServer.hpp
	robocom/arduino/impl/Gyro.cpp
	robocom/arduino/impl/RobotServer.cpp
	robocom/dropbox/robocom.py
	robocom/shared/msg/MessageTypes.hpp
Integrate test code.