Implemented VirtualPrinterDriver project

UI/VirtualPrinter.ProgressInfo.Lib/Interfaces/IProgressInfoProcessManager.cs

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+using VirtualPrinter.Agent.Core;
+
+namespace VirtualPrinter.ProgressInfo.Lib.Interfaces
+{
+    public interface IProgressInfoProcessManager
+    {
+        bool IsRunning();
+
+        void Run(IJob job);
+
+        void Stop();
+    }
+}

UI/VirtualPrinter.ProgressInfo.Lib/Interfaces/IProgressInfoServer.cs

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+using JetBrains.Annotations;
+
+using NamedPipeWrapper;
+
+namespace VirtualPrinter.ProgressInfo.Lib.Interfaces
+{
+    public interface IProgressInfoServer
+    {
+        [CanBeNull]
+        event ConnectionEventHandler<Core.Message.Message, Core.Message.Message> ClientConnected;
+
+        void PushMessage([NotNull] Core.Message.Message message);
+
+        void Start();
+
+        void Stop();
+    }
+}

UI/VirtualPrinter.ProgressInfo.Lib/Interfaces/IProgressInfoServerFactory.cs

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+namespace VirtualPrinter.ProgressInfo.Lib.Interfaces
+{
+    public interface IProgressInfoServerFactory
+    {
+        IProgressInfoServer Create();
+    }
+}