Change to use new ClimaParameter handling

[charleskawczynski]

We should apply the new clima parameter handling. An example of how to do this is in this PR.

A success metric for closing this issue involves:

• Having a centralized module for where clima parameters from dependency packages can be accessed (see, e.g., CloudMicrophysics.jl's Parameters module, which forwards methods for handling thermodynamic variables).
• Removing Land.jl's dependence on CLIMAParameters (i.e., using CLIMAParameters / import CLIMAParameters does not live in Land/src/).
• All parameters that were previously obtained from CLIMAParameters methods are obtained from the CLIMAParameters toml file

It may be more efficient to clean up / remove any old / unused code / tests before applying these changes since it's a bit involved.

[LenkaNovak]

refer to #70