[C++ Wrapper] Fix forward definition of the Aeron class and reorder constructor arguments.

Author: vyazelenko

aeron-client/src/main/cpp_wrapper/Aeron.h

@@ -778,7 +778,7 @@ class Aeron
             aeron_counter_constants_t counter_constants = {};
             aeron_counter_constants(counter, &counter_constants);
             return std::make_shared<Counter>(
-                counter, m_self.lock(), m_countersReader, counter_constants.registration_id);
+                m_self.lock(), m_countersReader, counter, counter_constants.registration_id);
         }
     }
 

aeron-client/src/main/cpp_wrapper/Counter.h

@@ -19,9 +19,7 @@
 
 #include <cstdint>
 #include <memory>
-#include <atomic>
 
-#include "util/Index.h"
 #include "concurrent/AtomicCounter.h"
 #include "concurrent/CountersReader.h"
 
@@ -30,16 +28,17 @@ namespace aeron
 
 using namespace aeron::concurrent;
 
+class Aeron;
 class ClientConductor;
 
 class Counter : public AtomicCounter
 {
 public:
     /// @cond HIDDEN_SYMBOLS
     Counter(
-        aeron_counter_t *counter,
         const std::shared_ptr<Aeron> &aeronRef,
         CountersReader &reader,
+        aeron_counter_t *counter,
         std::int64_t registrationId) :
         AtomicCounter(counter),
         m_aeronRef(aeronRef),