Enable MultiProcessorCompilation in VS 10 for faster compiling (it's usually...

Enable MultiProcessorCompilation in VS 10 for faster compiling (it's usually on by default, maybe got disabled because it was converted from an older project file once).

git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/trunk@4392 dfc29bdd-3216-0410-991c-e03cc46cb475

source/Irrlicht/Irrlicht10.0.vcxproj

@@ -323,6 +323,7 @@
       <RuntimeTypeInfo>false</RuntimeTypeInfo>
       <WarningLevel>Level3</WarningLevel>
       <Optimization>Disabled</Optimization>
+      <MultiProcessorCompilation>true</MultiProcessorCompilation>
     </ClCompile>
     <ResourceCompile>
       <PreprocessorDefinitions>_DEBUG;%(PreprocessorDefinitions)</PreprocessorDefinitions>