Fix license year

src/interpolation/interpolation_bindings.cpp

src/interpolation/interpolation_bindings.h

src/interpolation/mo_lib_interpolation_scalar.cpp

src/interpolation/mo_lib_interpolation_scalar.hpp

src/interpolation/mo_lib_interpolation_vector.cpp

src/interpolation/mo_lib_interpolation_vector.hpp

src/interpolation/mo_lib_intp_rbf.cpp

src/interpolation/mo_lib_intp_rbf.hpp

src/support/mo_lib_loopindices.cpp

src/support/mo_lib_loopindices.hpp

src/support/mo_math_utilities.cpp

src/support/mo_math_utilities.hpp

src/support/support_bindings.cpp

src/support/support_bindings.h

test/c/main.cpp

test/c/test_interpolation_scalar.cpp

test/c/test_interpolation_vector.cpp

test/c/test_intp_rbf.cpp

test/c/test_tdma_solver.cpp

test/fortran/test_loopindices.f90