Basics added

Need to work out how to use enums correctly for ReturnObjectImple
ReturnObjectImpl Ready for Testing

Tests need to be written
Test 90% written

Need to add specific messages for individual fails and then test the
tests.
Test Script Rewritten & tested

Need to write full tests but the basic functionality is working and
tests
ReturnObjectImpl Complete
Get, Size and CheckSize methods added to ArrayList
Add (Index) complete

Preliminary tests passed
ArrayList Complete

may need minor refactoring and full testing needs to be written
Basic LinkedList Wrapper class & Node

Node has no functionality as yet
Wrapper class will return if head is null otherwise points at the node
This is not tested.
LLN Size written