Purpose

Closes #1242

Extract most of the code out of the partitioned_turbulent_fluxes! function and move it into a function that dispatches on the component model type. For atmosphere models, the function does nothing, and for surface models it performs the flux calculation that was previously in partitioned_turbulent_fluxes!.

This design allows us to dispatch on model type instead of checking the type with an if statement, and, more importantly, it allows us to extend compute_surface_fluxes! for surface models where we want to perform different calculations (e.g. the integrated land model).

Content

• Add compute_surface_fluxes! function, write methods for atmosphere and surface models
• Write method for integrated land model - requires add ClimaLandSimulation struct #1199 and Add functions which compute the land surface fluxes ClimaLand.jl#1062
• Make import_atmos_fields depend on surface model type, since exchange variables depend on surface model type

Dependency updates

This PR requires ClimaLand v0.15.13, so it updates the dependencies. The changes include:

    Updating `~/clima/ClimaCoupler.jl/experiments/ClimaEarth/Project.toml`
  [d414da3d] ↑ ClimaCore v0.14.28 ⇒ v0.14.29
  [08f4d4ce] ↑ ClimaLand v0.15.12 ⇒ v0.15.13
  [0bca4576] ↑ SciMLBase v2.79.0 ⇒ v2.81.0