Add static thread pool queue for inspector

Adds thread pool queue for Fusebox debugger for use when implementing callbacks for the HostTarget or the InspectorPackagerConnection.

Author: rozele

vnext/Shared/FuseboxInspectorThread.h

@@ -0,0 +1,18 @@
+// Copyright (c) Microsoft Corporation.
+// Licensed under the MIT License.
+
+#pragma once
+
+#include <dispatchQueue/dispatchQueue.h>
+
+namespace Microsoft::ReactNative {
+
+class FuseboxInspectorThread final {
+ public:
+  static Mso::DispatchQueue &Instance() {
+    static Mso::DispatchQueue queue = Mso::DispatchQueue::MakeSerialQueue();
+    return queue;
+  }
+};
+
+} // namespace Microsoft::ReactNative

vnext/Shared/Shared.vcxitems

@@ -412,6 +412,7 @@
     <ClInclude Include="$(MSBuildThisFileDirectory)CxxMessageQueue.h" />
     <ClInclude Include="$(MSBuildThisFileDirectory)DevServerHelper.h" />
     <ClInclude Include="$(MSBuildThisFileDirectory)DevSettings.h" />
+    <ClInclude Include="$(MSBuildThisFileDirectory)FuseboxInspectorThread.h" />
     <ClInclude Include="$(MSBuildThisFileDirectory)Executors\WebSocketJSExecutor.h" />
     <ClInclude Include="$(MSBuildThisFileDirectory)HermesRuntimeHolder.h" />
     <ClInclude Include="$(MSBuildThisFileDirectory)InspectorPackagerConnection.h" />

vnext/Shared/Shared.vcxitems.filters

@@ -507,6 +507,9 @@
     <ClInclude Include="$(MSBuildThisFileDirectory)DevSettings.h">
       <Filter>Header Files</Filter>
     </ClInclude>
+    <ClInclude Include="$(MSBuildThisFileDirectory)FuseboxInspectorThread.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
     <ClInclude Include="$(MSBuildThisFileDirectory)IDevSupportManager.h">
       <Filter>Header Files</Filter>
     </ClInclude>