Mapserver compilation flags should be added to the SWIG command line

[Tamas Szekeres]

Folks,

Currently most of the SWIG bindings does not add mapserver compilation
flags to the
SWIG command line and therefore the interface might not be generated properly.
For example missing -DUSE_POINT_Z_M will prevent from generating z and m members
for pointObj etc.

I've added a bug for this issue:
http://mapserver.gis.umn.edu/bugs/show_bug.cgi?id=1881

And fixed for C#

Tamas