Add XML documentation across gateway, worker, and .NET client

src/MxGateway.Worker/MxAccess/MxAccessComObjectFactory.cs

@@ -2,8 +2,10 @@ using ArchestrA.MxAccess;
 
 namespace MxGateway.Worker.MxAccess;
 
+/// <summary>Factory for creating MXAccess COM objects on the STA thread.</summary>
 public sealed class MxAccessComObjectFactory : IMxAccessComObjectFactory
 {
+    /// <inheritdoc />
     public object Create()
     {
         return new LMXProxyServerClass();