Reimplementing the tnlSolver, tnlSolverInitiator and tnlSolver starter

examples/simple-solver/CMakeLists.txt

examples/simple-solver/main.cpp

examples/simple-solver/simple-solver.cfg.desc

examples/simple-solver/simpleProblemConfig.h

examples/simple-solver/simpleProblemSetter.h

examples/simple-solver/simpleProblemSetter_impl.h

examples/simple-solver/simpleSolverConfig.cpp

src/config/tnlConfigEntry.h

src/config/tnlConfigEntryList.h

src/core/param-types.h

src/implementation/solvers/CMakeLists.txt

src/implementation/solvers/ode/tnlEulerSolver_impl.h

src/implementation/solvers/ode/tnlMersonSolver_impl.h

src/implementation/solvers/tnlMeshTypeResolver_impl.h

src/implementation/solvers/tnlSolverConfig_impl.h

src/implementation/solvers/tnlSolverInitiator_impl.h

src/implementation/solvers/tnlSolverStarter_impl.h

src/implementation/solvers/tnlSolver_impl.h

src/solvers/CMakeLists.txt

src/solvers/ode/tnlEulerSolver.h