Unit tests to highlight the bugs in the find next occurrence methods. Probably the same bug as was fixed for the search methods
More unit tests to bring it in line with Search
Validation checks
Bug Fix: FindNextOccurrence now searches the last digit(s)
updated unit test as the expected result was wrong
Bug fixes for 4 bit digit version of Find Next Occurrence
Merge. Resolving conflicts & updating changes from master to reflect any refactoring