Add Common/Event.h to the VS project files.

Source/Core/Common/Common.vcxproj

@@ -50,6 +50,7 @@
     <ClInclude Include="CommonTypes.h" />
     <ClInclude Include="CPUDetect.h" />
     <ClInclude Include="DebugInterface.h" />
+    <ClInclude Include="Event.h" />
     <ClInclude Include="ExtendedTrace.h" />
     <ClInclude Include="FifoQueue.h" />
     <ClInclude Include="FileSearch.h" />

Source/Core/Common/Common.vcxproj.filters

@@ -68,6 +68,7 @@
       <Filter>Crypto</Filter>
     </ClInclude>
     <ClInclude Include="GekkoDisassembler.h" />
+    <ClInclude Include="Event.h" />
   </ItemGroup>
   <ItemGroup>
     <ClCompile Include="BreakPoints.cpp" />