Is it necessary to use such a fine grid for the surface flux example?

[glwagner]

It makes the example pretty expensive and hard to play around with. Right now the grid is the ECCO2 grid which is 1440 x 720

ClimaOcean.jl/examples/generate_surface_fluxes.jl

Lines 26 to 28 in dd9148a

	mask = ecco_mask()
	grid = mask.grid
	grid = ImmersedBoundaryGrid(grid, GridFittedBoundary(mask))

Also for surface fluxes there is no need to have 50 z-levels, right? Why don't we just use a single z-level? I feel like a 2 degree grid would be better. It's funny that the example claims that the "ECCO2 grid is a good starting point" -- why?