Add L2P timer in FLOG

include/GroupTree/Core/FGroupSeqAlgorithm.hpp

@@ -360,6 +360,7 @@ protected:
     void directPass(const bool p2pEnabled, const bool l2pEnabled){
         FLOG( FTic timer; );
         if(l2pEnabled){
+	  FLOG( FTic timerL2P; );
             typename OctreeClass::ParticleGroupIterator iterParticles = tree->leavesBegin();
             const typename OctreeClass::ParticleGroupIterator endParticles = tree->leavesEnd();
 
@@ -383,6 +384,7 @@ protected:
             }
 
             FAssertLF(iterParticles == endParticles && iterCells == endCells);
+	    FLOG( FLog::Controller << "\t\t L2PPass in " << timerL2P.tacAndElapsed() << "s\n" );
         }
         if(p2pEnabled){
             typename OctreeClass::ParticleGroupIterator iterParticles = tree->leavesBegin();