Add SongPosition for Split Timing.

Hmm...I wonder if this will mess with the compile order.

src/StepMania-net2010.vcxproj

@@ -461,6 +461,7 @@
     <ClCompile Include="Song.cpp" />
     <ClCompile Include="SongCacheIndex.cpp" />
     <ClCompile Include="SongOptions.cpp" />
+    <ClCompile Include="SongPosition.cpp" />
     <ClCompile Include="SongUtil.cpp" />
     <ClCompile Include="SoundEffectControl.cpp" />
     <ClCompile Include="StageStats.cpp" />
@@ -1778,6 +1779,7 @@
     <ClInclude Include="Song.h" />
     <ClInclude Include="SongCacheIndex.h" />
     <ClInclude Include="SongOptions.h" />
+    <ClInclude Include="SongPosition.h" />
     <ClInclude Include="SongUtil.h" />
     <ClInclude Include="SoundEffectControl.h" />
     <ClInclude Include="StageStats.h" />

src/StepMania-net2010.vcxproj.filters

@@ -1623,6 +1623,9 @@
     <ClCompile Include="..\extern\glew-1.5.8\src\glew.c">
       <Filter>Helpers\glew</Filter>
     </ClCompile>
+    <ClCompile Include="SongPosition.cpp">
+      <Filter>Data Structures</Filter>
+    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="Screen.h">
@@ -3014,6 +3017,9 @@
     <ClInclude Include="..\extern\lua-5.1\src\lzio.h">
       <Filter>Helpers\Lua</Filter>
     </ClInclude>
+    <ClInclude Include="SongPosition.h">
+      <Filter>Data Structures</Filter>
+    </ClInclude>
   </ItemGroup>
   <ItemGroup>
     <None Include="archutils\Win32\smzip.ico">