enable premake4 option --ios and Test_LinearMath

usage: ./premake4_osx --ios xcode4
open xcode4ios/0_Bullet3Solution.xcworkspace

test/Bullet2/vectormath/vmInclude.h

@@ -0,0 +1,31 @@
+
+#ifndef __VM_INCLUDE_H
+#define __VM_INCLUDE_H
+
+#include "LinearMath/btScalar.h"
+
+#if defined (USE_SYSTEM_VECTORMATH) || defined (__CELLOS_LV2__)
+	#include <vectormath_aos.h>
+#else //(USE_SYSTEM_VECTORMATH)
+	#if defined (BT_USE_SSE) 
+		#include "sse/vectormath_aos.h"
+	#else //all other platforms
+        #if defined (BT_USE_NEON)
+            #include "neon/vectormath_aos.h"
+        #else
+            #include "scalar/vectormath_aos.h"
+        #endif
+	#endif //(BT_USE_SSE) && defined (_WIN32)
+#endif //(USE_SYSTEM_VECTORMATH)
+
+
+
+typedef Vectormath::Aos::Vector3    vmVector3;
+typedef Vectormath::Aos::Quat       vmQuat;
+typedef Vectormath::Aos::Matrix3    vmMatrix3;
+typedef Vectormath::Aos::Transform3 vmTransform3;
+typedef Vectormath::Aos::Point3     vmPoint3;
+
+#endif //__VM_INCLUDE_H
+
+