prepare for Bullet 2 demo collection

Demos3/AllBullet2Demos/premake4.lua

@@ -0,0 +1,33 @@
+	
+		project "App_AllBullet2Demos"
+
+		language "C++"
+				
+		kind "ConsoleApp"
+		targetdir "../../bin"
+
+  	includedirs {
+                ".",
+                "../../src",
+                "../../btgui"
+                }
+
+		initOpenGL()
+		initGlew()
+			
+		links{"gwen", "OpenGL_Window","OpenGL_TrueTypeFont","BulletSoftBody","BulletDynamics","BulletCollision","LinearMath"}
+		
+		files {
+		"**.cpp",
+		"**.h",
+		"../../src/Bullet3Common/**.cpp",
+ 		"../../src/Bullet3Common/**.h",
+		"../../btgui/Timing/b3Clock.cpp",
+		"../../btgui/Timing/b3Clock.h",
+		"../GpuDemos/gwenUserInterface.cpp",
+		"../GpuDemos/gwenUserInterface.h"
+		}
+
+if os.is("MacOSX") then
+                        links{"Cocoa.framework"}
+end