Added module to do the work of building command components for Brick
Added module to do the work of building command components for Button
Added module to do the work of building command components for Motor
Added to manage a single message/response with the EV3 based on a set of components
Added to manage a piece of a message/response (one among one or more)
Modified to include and use the brick actions, and to wrap a command_component in a command
Modified to include and use the motor actions.
Modified to include and use the button actions.
Remove separate command module structure
Remove separate command module structure