Add SetDrivetrainStrafeCommand to the project.

This command will handle setting the strafing state of the robot's
drivetrain.
Add SetDrivetrainRotationCommand to the project.

This command will handle setting the rotation state of the robot's
drivetrain.
Add SetDrivetrainCommand to the project.

This command will handle setting both the strafing and rotation
states of the robot's drivetrain.
Merge branch 'master' of git@github.com:TheGreenMachine/Zed-Java.git