SCons build system files added.

You'll need SCons (www.scons.org) to build.
Platforms currently working:
* Linux (me)
  - options for quicktime, openal and international disabled
  - uses the system libs and include files for building - no option to build
    with the precompiled libraries yet.
* Windows (jesterKing)
  - builds with quicktime (optional)
  - builds with openal (optional)
  - builds with international support (optional)
  - Use the DOS box to build
  - builds with precompiled libraries
* Irix (Hos)
  - Uses default Irix compiler
  - Not all optimization levels correct yet
  - options for quicktime, openal and international disabled
  - builds with precompiled libraries
* Cygwin (me)
  - has a problem in the linking stage
  - uses free build tools (gcc)
  - options for quicktime, openal and international disabled
  - uses the system libs and include files for building - no option to build
    with the precompiled libraries yet.
* MacOS (sgefant)
  - builds with quicktime (optional)
  - options for openal and international disabled
  - builds a nice bundle
  - builds with precompiled libraries

Thanks to IanWill for a bugfix in the Linux build.
Note: This is a work in progress. A lot still has to be done - for example the
      optional parts are only to be enabled by directly setting 'true' or
      'false' in the SConstruct file. This needs to be moved to a user config
      file. Also, the .o/.obj files are stored in the source tree. This needs
      to be fixed as well.
      The game engine is not yet built.

source/blender/python/SConscript

@@ -0,0 +1,62 @@
+python_env = Environment ()
+
+# Import the C flags set in the SConstruct file
+Import ('cflags')
+Import ('cxxflags')
+Import ('defines')
+Import ('python_include')
+Import ('extra_includes')
+python_env.Append (CCFLAGS = cflags)
+python_env.Append (CXXFLAGS = cxxflags)
+python_env.Append (CPPDEFINES = defines)
+
+source_files = ['BPY_interface.c',
+                'api2_2x/Blender.c',
+                'api2_2x/Sys.c',
+                'api2_2x/Registry.c',
+                'api2_2x/Scene.c',
+                'api2_2x/Types.c',
+                'api2_2x/Object.c',
+                'api2_2x/NMesh.c',
+                'api2_2x/Material.c',
+                'api2_2x/Camera.c',
+                'api2_2x/World.c',
+                'api2_2x/Lamp.c',
+                'api2_2x/Lattice.c',
+                'api2_2x/Curve.c',
+                'api2_2x/Armature.c',
+                'api2_2x/Bone.c',
+                'api2_2x/Ipo.c',
+                'api2_2x/Ipocurve.c',
+                'api2_2x/BezTriple.c',
+                'api2_2x/Metaball.c',
+                'api2_2x/Effect.c',
+                'api2_2x/Particle.c',
+                'api2_2x/Wave.c',
+                'api2_2x/Build.c',
+                'api2_2x/Image.c',
+                'api2_2x/Window.c',
+                'api2_2x/Draw.c',
+                'api2_2x/BGL.c',
+                'api2_2x/Text.c',
+                'api2_2x/Texture.c',
+                'api2_2x/MTex.c',
+                'api2_2x/vector.c',
+                'api2_2x/constant.c',
+                'api2_2x/matrix.c',
+                'api2_2x/rgbTuple.c',
+                'api2_2x/gen_utils.c',
+                'api2_2x/EXPP_interface.c']
+
+python_env.Append (CPPPATH = ['api2_2x',
+                              '../blenkernel',
+                              '../blenlib',
+                              '../makesdna',
+                              '#/intern/guardedalloc',
+                              '#/intern/bmfont',
+                              '../imbuf',
+                              '../include',
+                              python_include])
+
+python_env.Append (CPPPATH = extra_includes)
+python_env.Library (target='#/lib/blender_python', source=source_files)