Catch parse errors better

src/csg/impl/levelset_3d.cpp

src/inputs/geometry.cpp

src/inputs/mesh.cpp

src/inputs/parser.cpp

src/inputs/solver.cpp

src/inputs/solver.hpp

src/inputs/solver_impl.hpp

src/inputs/tests/solver.t.cpp

src/inputs/time.cpp

subprojects/PEGTL