adding CORDEX facets

[larsbuntemeyer]

Description

closes #2221

Link to documentation:

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[codecov]

Codecov Report

Merging #2220 (3aae9ff) into main (469fd09) will not change coverage.
Report is 15 commits behind head on main.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main    #2220   +/-   ##
=======================================
  Coverage   93.27%   93.27%           
=======================================
  Files         238      238           
  Lines       12818    12818           
=======================================
  Hits        11956    11956           
  Misses        862      862           

Files	Coverage Δ
esmvalcore/esgf/facets.py	100.00% <ø> (ø)

[bouweandela]

To get these CORDEX related projects to work with the complete tool (i.e. use them in recipes), not just the esmvalcore.esgf module used for finding files and downloading them, you will probably want to add entries to the file esmvalcore/config-developer.yml, similar to the current CORDEX entry:

ESMValCore/esmvalcore/config-developer.yml

Lines 148 to 159 in 2be264d

	CORDEX:
	input_dir:
	default: '/'
	spec: '{domain}/{institute}/{driver}/{exp}/{ensemble}/{institute}-{dataset}/{rcm_version}/{mip}/{short_name}'
	BADC: '{domain}/{institute}/{driver}/{exp}/{ensemble}/{institute}-{dataset}/{rcm_version}/{mip}/{short_name}/{version}'
	DKRZ: '{domain}/{institute}/{driver}/{exp}/{ensemble}/{institute}-{dataset}/{rcm_version}/{mip}/{short_name}/{version}'
	ESGF: '{project.lower}/output/{domain}/{institute}/{driver}/{exp}/{ensemble}/{dataset}/{rcm_version}/{frequency}/{short_name}/{version}'
	SYNDA: '{domain}/{institute}/{driver}/{exp}/{ensemble}/{dataset}/{rcm_version}/{frequency}/{short_name}/{version}'
	input_file: '{short_name}_{domain}_{driver}_{exp}_{ensemble}_{institute}-{dataset}_{rcm_version}_{mip}*.nc'
	output_file: '{project}_{institute}_{dataset}_{rcm_version}_{driver}_{domain}_{mip}_{exp}_{ensemble}_{short_name}'
	cmor_type: 'CMIP5'
	cmor_path: 'cordex'

[larsbuntemeyer]

@bouweandela thanks for that! Sorry, i have been a bit lazy on this one, i'll still have to finish testing...