they were defined in escherex.hxx as SHAPEFLAG_*
and in msdffimp.hxx as SP_*.

Added include for escherex.hxx to msdffimp.hxx.
Filled the missing flag bits.
ShapeFlag::Deleted is not used at the moment.
Convert ADD_SHAPE macro to lambda.
Fix horizontal/vertical mixup in RtfSdrExport::AddLineDimensions.

Comments for flag Connector were wrong. The flag applies to shapes
which ARE connectors.
MSO definition: "connector: A line that is used to connect two
or more shapes and that remains connected to those shapes."
So Rectangles and such with Connector flag don't make sense.

Change-Id: I735de00110411b280a302840dc0fcdfac5156399
Reviewed-on: https://gerrit.libreoffice.org/41754Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>