Sleeping cars and their relative values and liveries.

[Spenk009]

I have fixed and pushed the four issues. Additionally i have added the entries in the comfort calibration spreadsheet.

In relation to the relative comfort of quint and quad arts, if you have data showing that they had a different spacing between compartments in the same class, then do reflect this in the comfort ratings (using the spreadsheet to find the comfort of similar non-lavatory vehicles).

I have omitted adding the semi-corridor lavatory composite. Would there have been a non-composite version or a semi-corridor vehicle with lavatory at any stage? It feels a little like a gimmick to have this individual type (the only lavatory) in the stock available.