removed unused methods(BeginPlay, Tick) and added rider plugin

Plugins/Developer/RiderLink/Source/RD/thirdparty/countdownlatch/countdownlatch.hpp

@@ -0,0 +1,51 @@
+#ifndef __COUNTDOWNLATCH_NIPUN__
+#define __COUNTDOWNLATCH_NIPUN__
+
+#include <cinttypes>
+#include <cstdint>
+#include <mutex>
+#include <condition_variable>
+
+
+namespace clatch 
+{
+    class countdownlatch {
+    public:
+        /*! Constructor
+          \param count, the value the countdownlatch object should be initialized with
+        */
+        explicit countdownlatch(uint32_t count);
+
+
+        /*!
+            await causes the caller to wait until the latch is counted down to zero, 
+            if wait time nanosecs is not zero, then maximum wait is for nanosec nanoseconds 
+          \param nanosecs is waittime in nanoseconds, by default it is zero which specifies 
+           indefinite wait  
+        */
+        void await(uint64_t nanosecs=0);
+
+        /*!
+          Countdown decrements the count of the latch, signalling all waiting thread if the 
+          count reaches zero.
+         */
+        void count_down();
+
+        /*!
+          get_count returns the current count  
+         */
+        uint32_t get_count(); 
+
+    private:
+        std::condition_variable cv;
+        std::mutex lock;
+        uint32_t count;
+        
+        // deleted constructors/assignmenet operators
+        countdownlatch() = delete;
+        countdownlatch(const countdownlatch& other) = delete;
+        countdownlatch& operator=(const countdownlatch& opther) = delete;
+    };
+}
+
+#endif