return shared_ptr in getter if member variable if shared_ptr

examples/ellipt.cc

src/amdis/ProblemInstat.hpp

src/amdis/ProblemInstat.inc.hpp

src/amdis/ProblemStat.hpp

src/amdis/linearalgebra/DOFVectorBase.hpp

test/DataTransferTest.hpp

test/DiscreteFunctionTest.cpp