Regridder module

[juliasloan25]

Create a module for regridding files between spaces.

ClimaCoupler.jl Regridder module: https://github.com/CliMA/ClimaCoupler.jl/blob/main/src/Regridder.jl
ClimaLSM.jl Regridder module: https://github.com/CliMA/ClimaLSM.jl/blob/main/src/shared_utilities/Regridder.jl

ClimaCoupler.jl Regridder tests: https://github.com/CliMA/ClimaCoupler.jl/blob/main/test/regridder_tests.jl
ClimaLSM.jl Regridder tests: https://github.com/CliMA/ClimaLSM.jl/blob/main/test/shared_utilities/regridder.jl

Note - DataCleanup

Maybe data cleanup functions should be moved to a separate module (e.g. DataCleanup)

• nans_to_zero
• missings_to_zero
• clean_data
• to_datetime (in TimeManager)

Closed by #8
Tracked by #39

To Do

• Create table of all functions and structs with:
  • currrent repo locations
  • destination (ClimaUtilities or other)
  • test status
  • list of changes between repos, and other notes
• Copy over functions that are shared between repos and unchanged (case 1)
• Add tests for these functions
• Copy functions that exist in only one repo (case 2)
• Add tests for these functions
• Copy over functions that exist in multiple repos and are changed between them (case 3)
• Generalize function interfaces, extend functionality for all users
• Add tests for these functions, update to use new interfaces
• Test from user packages
• Add compat entries in project for new deps
• Add docs page