Clean Up Code around List Nodes

Make sure code refers clearly to List (whole) nodes or List elements
incl. method names, parameter names,  test descriptions etc.

Issue-ID: CPS-756
Change-Id: Ic9dae6565c0e84c1ba4c2d6e891d3ea307f589da
Signed-off-by: DylanB95EST <dylan.byrne@est.tech>
17 files changed