Fix VS project files

Author: wheremyfoodat

vsprojects/gui/gui.vcxproj

@@ -128,6 +128,7 @@
     <ClCompile Include="..\..\src\gui\gui.cc" />
     <ClCompile Include="..\..\src\gui\luaimguiextra.cc" />
     <ClCompile Include="..\..\src\gui\luanvg.cc" />
+    <ClCompile Include="..\..\src\gui\splash.cc" />
     <ClCompile Include="..\..\src\gui\resources-unix.cc" />
     <ClCompile Include="..\..\src\gui\resources-win32.cc" />
     <ClCompile Include="..\..\src\gui\shaders\crt-lottes.cc" />

vsprojects/gui/gui.vcxproj.filters

@@ -103,6 +103,9 @@
     <ClCompile Include="..\..\src\gui\luaimguiextra.cc">
       <Filter>Source Files</Filter>
     </ClCompile>
+    <ClCompile Include="..\..\src\gui\splash.cc">
+      <Filter>Source Files</Filter>
+    </ClCompile>
     <ClCompile Include="..\..\src\gui\widgets\patches.cc">
       <Filter>Source Files\widgets</Filter>
     </ClCompile>