[WotCon] Add the WoT Connectivity registry and its stores

src/Opc.Ua.Types/Utils/FileSystem/VirtualFileSystem.cs

@@ -172,23 +172,18 @@ public void Replace(string sourcePath, string destinationPath)
                     sourcePath);
             }
 
-            while (true)
-            {
-                if (!m_files.TryGetValue(destinationPath, out VirtualFile? existing))
+            // Re-keying the whole entry publishes the file in one step, so a reader sees
+            // either the previous content or the new content and never a partial write.
+            VirtualFile? replaced = null;
+            m_files.AddOrUpdate(
+                destinationPath,
+                staged,
+                (_, existing) =>
                 {
-                    if (m_files.TryAdd(destinationPath, staged))
-                    {
-                        return;
-                    }
-                    continue;
-                }
-
-                if (m_files.TryUpdate(destinationPath, staged, existing))
-                {
-                    existing.Dispose();
-                    return;
-                }
-            }
+                    replaced = existing;
+                    return staged;
+                });
+            replaced?.Dispose();
         }
 
         /// <inheritdoc/>

src/Opc.Ua.WotCon.Server/Assets/WotAssetFileManager.cs

@@ -81,7 +81,8 @@ public WotAssetFileManager(
             file.Write?.OnCall = new WriteMethodStateMethodCallHandler(OnWrite);
             file.GetPosition?.OnCall = new GetPositionMethodStateMethodCallHandler(OnGetPosition);
             file.SetPosition?.OnCall = new SetPositionMethodStateMethodCallHandler(OnSetPosition);
-            file.CloseAndUpdate?.OnCall = new CloseAndUpdateMethodStateMethodCallHandler(OnCloseAndUpdate);
+            file.CloseAndUpdate?.OnCall =
+                new CloseAndUpdateIWoTAssetTypeWoTFileMethodStateMethodCallHandler(OnCloseAndUpdate);
         }
 
         /// <summary>

src/Opc.Ua.WotCon.Server/Opc.Ua.WotCon.Server.csproj

@@ -36,6 +36,7 @@
     <ProjectReference Include="..\Opc.Ua.Server\Opc.Ua.Server.csproj" />
     <ProjectReference Include="..\Opc.Ua.Bindings.Https\Opc.Ua.Bindings.Https.csproj" />
     <ProjectReference Include="..\Opc.Ua.WotCon\Opc.Ua.WotCon.csproj" />
+    <ProjectReference Include="..\Opc.Ua.XRegistry.Server\Opc.Ua.XRegistry.Server.csproj" />
   </ItemGroup>
   <ItemGroup>
     <None Include="NugetREADME.md" Pack="true" PackagePath="\" />