When a uCalc instance is no longer needed, it can be released with this function. This releases all items
associated with the uCalc instance.
Note: The uCalc object named uc, which is instantiated at startup (except in C#) should not be explicitely released.
In C#, if there is only 1 uCalc object left, do not explicitely release it.
Note: A uCalc object must explicitely be released with Release for it to be released. A uCalc object is not
automatically released from memory when the object goes out of scope.