Added missing files to Visual Studio project, and fixed compile error.

src/common/repository/KeyValueRepositoryConfigfile.cxx

@@ -80,4 +80,6 @@ bool KeyValueRepositoryConfigfile::save(ostream& out, const std::map<string, Var
   // Write out each of the key and value pairs
   for(const auto& [key, value]: values)
     out << key << " = " << value << endl;
+
+  return true;
 }

src/windows/Stella.vcxproj

@@ -1555,6 +1555,7 @@
     <ClInclude Include="..\common\PKeyboardHandler.hxx" />
     <ClInclude Include="..\common\Rect.hxx" />
     <ClInclude Include="..\common\repository\CompositeKeyValueRepository.hxx" />
+    <ClInclude Include="..\common\repository\CompositeKeyValueRepositoryNoop.hxx" />
     <ClInclude Include="..\common\repository\CompositeKVRJsonAdapter.hxx" />
     <ClInclude Include="..\common\repository\KeyValueRepository.hxx" />
     <ClInclude Include="..\common\repository\KeyValueRepositoryConfigfile.hxx" />
@@ -1894,6 +1895,7 @@
     <ClInclude Include="..\libpng\pngstruct.h" />
     <ClInclude Include="..\sqlite\source\sqlite3.h" />
     <ClInclude Include="..\sqlite\sqlite3.h" />
+    <ClInclude Include="..\sqlite\sqlite_options.h" />
     <ClInclude Include="FSNodeWINDOWS.hxx" />
     <ClInclude Include="HomeFinder.hxx" />
     <ClInclude Include="OSystemWINDOWS.hxx" />

src/windows/Stella.vcxproj.filters

@@ -2267,6 +2267,12 @@
     <ClInclude Include="..\common\repository\KeyValueRepositoryJsonFile.hxx">
       <Filter>Header Files\repository</Filter>
     </ClInclude>
+    <ClInclude Include="..\common\repository\CompositeKeyValueRepositoryNoop.hxx">
+      <Filter>Header Files\repository</Filter>
+    </ClInclude>
+    <ClInclude Include="..\sqlite\sqlite_options.h">
+      <Filter>Header Files\sqlite</Filter>
+    </ClInclude>
   </ItemGroup>
   <ItemGroup>
     <None Include="stella.ico">