Using -hidenamespace to hide namespace qualifiers

By default, documentation generated by Ruff! includes namespace qualifiers in all class and proc names. It is possible to have the generated output leave out the namespace qualifers by adding the -hidenamespace NAMESPACE qualifier to the document generation commands. This provides a more visually pleasing output with less noise, but may result in ambiguities in case of names being present in more than one namespace. In particular, some formatters may not cross-link correctly in such cases.