`ZStar` to be renamed to `ZStarCoordinate`

[navidcy]

Minor refactor in CliMA/Oceananigans.jl#4686 will break

ClimaOcean.jl/src/OceanSimulations/ocean_simulation.jl

Line 80 in 8479089

default_vertical_coordinate(::MutableGridOfSomeKind) = Oceananigans.Models.ZStar()

and would require

default_vertical_coordinate(grid::MutableGridOfSomeKind) = Oceananigans.Models.ZStarCoordinate(grid) 

[glwagner]

shouldn't that default vertical coordinate stuff live in Oceananigans?

[navidcy]

Yes!