Extremely basic first go at SWIG bindings

Only Enums.h is wrapped so far and I haven't tested it
For now I will focus on Python but Java and C# will be useful too

Packaging.cmake

@@ -30,3 +30,5 @@ INCLUDE(CPack)
 CPACK_ADD_COMPONENT(library DISPLAY_NAME "Library" DESCRIPTION "The runtime libraries" REQUIRED)
 CPACK_ADD_COMPONENT(development DISPLAY_NAME "Development" DESCRIPTION "Files required for developing with PolyVox" DEPENDS library)
 CPACK_ADD_COMPONENT(example DISPLAY_NAME "OpenGL Example" DESCRIPTION "A PolyVox example application using OpenGL" DEPENDS library)
+cpack_add_component_group(bindings DISPLAY_NAME "Bindings" DESCRIPTION "Language bindings")
+CPACK_ADD_COMPONENT(python DISPLAY_NAME "Python Bindings" DESCRIPTION "PolyVox bindings for the Python language" DISABLED GROUP bindings DEPENDS library)

library/CMakeLists.txt

@@ -137,3 +137,19 @@ if(DOXYGEN_FOUND)
 	configure_file(${CMAKE_CURRENT_SOURCE_DIR}/Doxyfile.in ${CMAKE_CURRENT_BINARY_DIR}/Doxyfile)
 	add_custom_target(doc COMMAND ${DOXYGEN_EXECUTABLE} WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR} COMMENT "Building documentation" VERBATIM)
 endif()
+
+find_package(SWIG)
+if(SWIG_FOUND)
+	INCLUDE(${SWIG_USE_FILE})
+	
+	FIND_PACKAGE(PythonLibs)
+	INCLUDE_DIRECTORIES(${PYTHON_INCLUDE_PATH})
+
+	SET(CMAKE_SWIG_FLAGS "")
+	SET_SOURCE_FILES_PROPERTIES(bindings/Enums.i PROPERTIES CPLUSPLUS ON)
+	
+	SWIG_ADD_MODULE(Enums python bindings/Enums.i)
+	SWIG_LINK_LIBRARIES(Enums ${PYTHON_LIBRARIES})
+	
+	install(FILES ${CMAKE_CURRENT_BINARY_DIR}/Enums.py DESTINATION lib COMPONENT python)
+endif()

library/bindings/Enums.i

@@ -0,0 +1,6 @@
+%module Enums
+%{
+#include "PolyVoxCore/Enums.h"
+%}
+
+enum NormalGenerationMethod;