Did the work for closing issue #304

Did the work: Add new records for floor of attic for EnEV2009, EnEV2002, WSchV1984,… WSchV1995

Correctly reference the records in the HOM: Attic_Ro2Lf5.mo

This should close #304 (closed)

@TobiasBlacha as you made me aware of the problem and know about it, would you please look over the changes and if all is good accept the pull request?