Added tests for the major functions that need them, solvers and rrtmgp methods.

[makepath-alex]

Added tests for rte_increment_1scalar_by_1scalar Added tests for rte_increment_1scalar_by_2stream Added tests for rte_increment_1scalar_by_nstream and fixed a iteration mistake in previous output test Added tests for rte_increment_2stream_by_1scalar Added tests for rte_increment_2stream_by_2stream Added tests for rte_increment_2stream_by_nstream Added tests for rte_increment_nstream_by_1scalar Added tests for rte_increment_nstream_by_2stream Added tests for rte_increment_nstream_by_nstream and fixed small error message mistakes Export rte_inc_1scalar_by_nstream_bybnd There was a problem in the Fortran repo. The header was incorrect, so we've fixed it. Added tests for sw_solver_2stream and changed the test directory structure Zipped the lw solver data because it was 180mb test data for interpolation test Added a test for rrtmgp_compute_tau_rayleigh Added a test for rrtmgp_compute_tau_absorption Added a test for rrtmgp_compute_Planck_source