Added new projects of new RPC core: MyClient and MtServivce

MtService/Logger.h

@@ -0,0 +1,22 @@
+#pragma once
+
+#include <string>
+#include <memory>
+
+class Logger
+{
+public:
+    Logger(const char* class_name);
+    ~Logger();
+
+    void Fatal(const char* fmt, ...);
+    void Error(const char* fmt, ...);
+    void Warning(const char* fmt, ...);
+    void Info(const char* fmt, ...);
+    void Debug(const char* fmt, ...);
+    void Trace(const char* fmt, ...);
+
+private:
+    class LoggerImpl;
+    std::unique_ptr<LoggerImpl> logger_impl_;
+};