StateChecker for ClimaOcean simulations / standardized progress reporting

[glwagner]

Most of the simulations in ClimaOcean are going to be "ocean-flavored" --- ie Boussinesq simulations with tracers T, S or b for buoyancy. Many of them will also use CATKE and have a TKE variable e.

Thus I think this package might benefit from standardized progress reporting --- ie some display printing things like max, min, mean for important variables, and even perhaps other diagnostics like kinetic energy, etc.

I'm opening this issue to discuss what we might want to put in this. We can start with Oceananigans's StateChecker:

https://github.com/CliMA/Oceananigans.jl/blob/main/src/Diagnostics/state_checker.jl

[glwagner]

@christophernhill might have something to add