Added new distributed algorithm

CMakeLists.txt

src/CMakeLists.txt

src/CommonSOG.cpp

src/CommonSOG.h

src/DistributedSOG.h

src/Hybrid/HybridKripke.cpp

src/Hybrid/HybridKripke.h

src/Hybrid/HybridKripkeIterator.cpp

src/Hybrid/HybridKripkeIterator.h

src/Hybrid/HybridKripkeState.cpp

src/Hybrid/HybridKripkeState.h

src/Hybrid/MCHybrid/MCHybridSOG.cpp

src/Hybrid/MCHybrid/MCHybridSOG.h

src/Hybrid/MCHybridReq/MCHybridSOGReq.cpp

src/Hybrid/MCHybridReq/MCHybridSOGReq.h

src/HybridSOG.h

src/MCMultiCore/ModelCheckThReq.cpp

src/MCMultiCore/ModelCheckThReq.h

src/MCMultiCore/ModelCheckerCPPThread.cpp

src/MCMultiCore/ModelCheckerCPPThread.h