BGE: Fix T48071: Global logic manager

Previously the logic manager was used as a global variable for SCA_ILogicBrick::m_sCurrentLogicManager,
this request to always update it before run any python script and allow call function like
ConvertPythonTo[GameObject/Mesh]. The bug showed in T48071 is that as exepted the global
m_sCurrentLogicManager is not updated with the proper scene logic manager.
Instead of trying to fix it by updating the logic manager everywhere and wait next bug report to add
a similar line. The following patch propose a different way:
- Every logic brick now contain its logic manager to SCA_ILogicBrick::m_logicManager, this value is
  set and get by SCA_ILogicBrick::[Set/Get]LogicManager, It's initialized from blender conversion and
  scene merging.
- Function ConvertPythonTo[GameObject/mesh] now take as first argument the logic manager to find name
  coresponding object or mesh. Only ConvertPythonToCamera doesn't do that because it uses the
  KX_Scene::FindCamera function.

Reviewers: moguri

Differential Revision: https://developer.blender.org/D1913

source/gameengine/GameLogic/SCA_PythonController.cpp

@@ -386,8 +386,7 @@ bool SCA_PythonController::Import()
 void SCA_PythonController::Trigger(SCA_LogicManager* logicmgr)
 {
 	m_sCurrentController = this;
-	m_sCurrentLogicManager = logicmgr;
-	
+
 	PyObject *excdict=		NULL;
 	PyObject *resultobj=	NULL;
 	
@@ -478,7 +477,7 @@ PyObject *SCA_PythonController::PyActivate(PyObject *value)
 	if (actu==NULL)
 		return NULL;
 	
-	m_sCurrentLogicManager->AddActiveActuator((SCA_IActuator*)actu, true);
+	m_logicManager->AddActiveActuator((SCA_IActuator*)actu, true);
 	Py_RETURN_NONE;
 }
 
@@ -493,7 +492,7 @@ PyObject *SCA_PythonController::PyDeActivate(PyObject *value)
 	if (actu==NULL)
 		return NULL;
 	
-	m_sCurrentLogicManager->AddActiveActuator((SCA_IActuator*)actu, false);
+	m_logicManager->AddActiveActuator((SCA_IActuator*)actu, false);
 	Py_RETURN_NONE;
 }