minor cleanup of btgui/demo3 stuff, much more demo cleanup is needed

moved some files in btgui/Bullet3AppSupport

btgui/Bullet3AppSupport/CMakeLists.txt

@@ -0,0 +1,30 @@
+
+INCLUDE_DIRECTORIES(
+	${BULLET_PHYSICS_SOURCE_DIR}/src
+	${BULLET_PHYSICS_SOURCE_DIR}/btgui
+)
+
+FILE(GLOB Bullet3AppSupport_HDRS "*.h" )
+FILE(GLOB Bullet3AppSupport_SRCS "*.cpp" )
+
+IF (WIN32)
+	ADD_DEFINITIONS(-DGLEW_STATIC)
+ENDIF(WIN32)
+IF(NOT WIN32 AND NOT APPLE)
+        ADD_DEFINITIONS(-DGLEW_STATIC)
+	ADD_DEFINITIONS("-DGLEW_INIT_OPENGL11_FUNCTIONS=1")
+        ADD_DEFINITIONS("-DGLEW_DYNAMIC_LOAD_ALL_GLX_FUNCTIONS=1")
+ENDIF()
+
+ADD_LIBRARY(Bullet3AppSupport ${Bullet3AppSupport_SRCS} ${Bullet3AppSupport_HDRS})
+if (UNIX AND NOT APPLE)
+  target_link_libraries(Bullet3AppSupport X11)
+elseif (APPLE)
+  target_link_libraries(Bullet3AppSupport ${COCOA_LIBRARY})
+endif ()
+
+if (BUILD_SHARED_LIBS)
+  target_link_libraries(Bullet3AppSupport OpenGLWindow Bullet3Common)
+endif()
+
+target_link_libraries(Bullet3AppSupport ${OPENGL_gl_LIBRARY})