More sorts of currents in feedback (#5)

* more types of current in state

* fixed layout assertions and added namespaces

bobbycar-common.h

@@ -2,6 +2,9 @@
 
 #include <stdint.h>
 
+namespace bobbycar {
+namespace protocol {
+
 enum class ControlType : uint8_t {
     Commutation,
     Sinusoidal,
@@ -14,3 +17,6 @@ enum class ControlMode : uint8_t {
     Speed, // Only with FieldOrientedControl
     Torque // Only with FieldOrientedControl
 };
+
+} // namespace protocol
+} // namespace bobbycar