[libredwg] R2007 header decoding

[Till Heuschmann]

Hi All.

Have you noticed that there is a new version of the specs available?
The new version contains informations about r2007 header compression and 
r2010 fields in objects.
Recently we got stuck with r2007 rs decoding which turns out is not the 
problem (ignoring the rs-parity bytes the data bytes can be used as they 
are!) but the compression of the headers. Fortunately the compression 
algorithms are covered (~90% of them, the spec-document seems to be 
broken ;) )

I will spend some time with the headers. Is someone else working in this 
area?