Utilities for gray radiation simulation

update_profile_lw!(
    ::ClimaComms.AbstractDevice,
    sbc,
    t_lay,
    t_lev,
    flux_dn,
    flux_net,
    hr_lay,
    flux_grad,
    T_ex_lev,
    Δt,
    nlay,
    nlev,
    ncol,
)

Update t_lay and t_lev based on the heating rate.

compute_gray_heating_rate!(
    device,
    hr_lay,
    p_lev,
    ncol,
    nlay,
    flux_net,
    cp_d_,
    grav_,
)

Compute the heating rate for the gray radiation simulation.