This is for anyone that is not too familiar with C++ (like myself). After some head scratching, I realized that in order to get this code to compile you have to remove the ‘ROBOTICS_API’ in the header.
so instead of
class ROBOTICS_API UServoSupport : public UBlueprintFunctionLibrary
it should read
class UServoSupport : public UBlueprintFunctionLibrary