Move buildkite tests to unit tests

[nefrathenrici]

We should consolidate some buildkite tests into a single unit test

Cases to move:

• aquaplanet_nonequil_allsky_gw_res_2M
• aquaplanet_equil_allsky_gw_raw
• edonly_edmfx_aquaplanet
• rcemipii_sphere_diagnostic_edmfx
• baroclinic_wave_topography_dcmip_rs