REFAC: Remove the launchSimulation from public API

launchSimulation and startSimulation have similar meaninn to be included in public API.
Moved the launch simulation to be a private member.

Source/SimulationManager/VTKRenderer/imstkVTKInteractorStyle.cpp

@@ -150,7 +150,7 @@ VTKInteractorStyle::OnChar()
         if (status == SimulationStatus::INACTIVE)
         {
             m_fpsActor->SetVisibility(m_displayFps);
-            m_simManager->launchSimulation();
+            m_simManager->startSimulation(false);
         }
     }
     else if (status != SimulationStatus::INACTIVE &&

Source/SimulationManager/imstkSimulationManager.h

@@ -155,13 +155,6 @@ public:
     ///
     void printUserControlsInfo();
 
-    ///
-    /// \brief Launch simulation for the first time.
-    /// 1. Initialize the active scene if not initialized already.
-    /// 2. Launches separate threads for each module.
-    ///
-    void launchSimulation();
-
     ///
     /// \brief Start the simulation by initializing the active scene
     ///
@@ -190,6 +183,13 @@ public:
 
 private:
 
+    ///
+    /// \brief Launch simulation for the first time.
+    /// 1. Initialize the active scene if not initialized already.
+    /// 2. Launches separate threads for each module.
+    ///
+    void launchSimulation();
+
     void startModuleInNewThread(std::shared_ptr<Module> module);
 
     SimulationStatus m_status = SimulationStatus::INACTIVE;