Updated the CrySystem module to execute deferred console commands (#3371)

* Updated the CrySystem module to execute deferred console commands

This allows the CVars declared in CrySystem module to execute commands
invoked before it was loaded.

This is particularly useful for the load level command

resolves #2062

Signed-off-by: lumberyard-employee-dm <56135373+lumberyard-employee-dm@users.noreply.github.com>

* Moved the invocation of deferred console commands after the LevelSystem
instance has been created

Signed-off-by: lumberyard-employee-dm <56135373+lumberyard-employee-dm@users.noreply.github.com>

Code/Legacy/CrySystem/SystemInit.cpp

@@ -1626,6 +1626,9 @@ AZ_POP_DISABLE_WARNING
     // Send out EBus event
     EBUS_EVENT(CrySystemEventBus, OnCrySystemInitialized, *this, startupParams);
 
+    // Execute any deferred commands that uses the CVar commands that were just registered
+    AZ::Interface<AZ::IConsole>::Get()->ExecuteDeferredConsoleCommands();
+
     // Verify that the Maestro Gem initialized the movie system correctly. This can be removed if and when Maestro is not a required Gem
     if (gEnv->IsEditor() && !gEnv->pMovieSystem)
     {
@@ -1641,7 +1644,7 @@ AZ_POP_DISABLE_WARNING
 
     m_bInitializedSuccessfully = true;
 
-    return (true);
+    return true;
 }