ParameterBase merely provides a virtual setter and getter, and also
acts as a common type which will be used to store pointers to Parameter
objects in an array, so as to enable ID-based parameter fetching and updating.

Rewrite of documentation and of the rest of the service is underway.

Closes #35

Apply suggestion to src/Helpers/TimeAndDate.cpp

Add MessageParser tests

Apply suggestion to src/MessageParser.cpp

Fix documentation typo