move some files to shared folders

use b3Aabb for compound vs compound on host (for testing, towards BVH)

src/Bullet3Common/shared/b3Int2.h

@@ -0,0 +1,50 @@
+/*
+Bullet Continuous Collision Detection and Physics Library
+Copyright (c) 2003-2013 Erwin Coumans  http://bulletphysics.org
+
+This software is provided 'as-is', without any express or implied warranty.
+In no event will the authors be held liable for any damages arising from the use of this software.
+Permission is granted to anyone to use this software for any purpose,
+including commercial applications, and to alter it and redistribute it freely,
+subject to the following restrictions:
+
+1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required.
+2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software.
+3. This notice may not be removed or altered from any source distribution.
+*/
+
+#ifndef B3_INT2_H
+#define B3_INT2_H
+
+struct b3UnsignedInt2
+{
+	union
+	{
+		struct
+		{
+			unsigned int x,y;
+		};
+		struct
+		{
+			unsigned int s[2];
+		};
+	};
+};
+
+struct b3Int2
+{
+	union
+	{
+		struct
+		{
+			int x,y;
+		};
+		struct
+		{
+			int s[2];
+		};
+	};
+};
+
+
+#endif