fixed include file order in unit tests to compile on windows

modules/geom/tests/test_composite2.cc

modules/geom/tests/test_composite3.cc

modules/geom/tests/test_mat2.cc

modules/geom/tests/test_mat3.cc

modules/geom/tests/test_mat4.cc

modules/geom/tests/test_op2.cc

modules/geom/tests/test_op3.cc

modules/geom/tests/test_op4.cc

modules/geom/tests/test_quat.cc

modules/geom/tests/test_vec2.cc

modules/geom/tests/test_vec3.cc

modules/geom/tests/test_vec4.cc

modules/io/tests/test_clustal.cc

modules/io/tests/test_io_crd.cc

modules/io/tests/test_io_dcd.cc

modules/io/tests/test_io_img.cc

modules/io/tests/test_io_pdb.cc

modules/io/tests/test_io_sdf.cc

modules/io/tests/test_iomanager.cc

modules/io/tests/test_mmcif_info.cc