Load skeleton by filename Part 1

Load skeleton by filename again. This is still the local filename. Will change to group filename next.
Load skeleton by filename Part 2

This is still group filename. I do not like the structure of building the name yet, since it repeats in both functions. Also, the folder separator is missing and I do not want to add this in two places. See output:

planet\Objects.ocd\Items.ocd\Weapons.ocd\Bow.ocd\Arrow.ocd\HelpArrow.ocdArrow.skeleton
planet\Objects.ocd\Items.ocd\Weapons.ocd\Shield.ocdShield.skeleton