TRACE: now according to R10..R14.

Signed-off-by: bert <bert.timmerman@xs4all.nl>
UCS: added ucs.c.

Signed-off-by: bert <bert.timmerman@xs4all.nl>
UCS: correction in the Doxygen header.

Signed-off-by: bert <bert.timmerman@xs4all.nl>
UCS: DxfUcs struct now according to R10..R14.

Signed-off-by: bert <bert.timmerman@xs4all.nl>