fix shadowmap crash on some Intel GPUs, see https://github.com/bulletphysics/bullet3/issues/4

remove targetdir from all libraries in premake, so it is much easier to create a separate folder for all binary+lib
transmit the serialized btMultiBody data back from server to client, after the server loads a URDF file. This includes base+link+joint names
tweak the serialization routines, so it is easier to skip pointers and to serialize directly to a shared memory buffer
also tweak the serialization code to allow to process data without 'DNA' schema data (assuming file-DNA = memory DNA)

Extras/Serialize/BulletFileLoader/premake4.lua

@@ -1,7 +1,7 @@
 	project "BulletFileLoader"
 		
 	kind "StaticLib"
-	targetdir "../../lib"
+	
 	includedirs {
 		"../../../src"
 	}