CORDEX-CMIP6 Updates

[sol1105]

Updates to CORDEX-CMIP6 checker

• Merging latest changes by @aulemahal to the check_lon_value_range check into develop branch
• Updating this check to also skip monotony check if lon values cross zero- and anti-meridian
• Update DRS template interpretation to support CMIP6- and CMIP7-style DRS templates in CV tables (until now only CMIP6-style interpretation was supported)
• Add option "verification_against_tables" to choose between verification against esgvoc and CV-tables
• This is WIP: Until esgvoc is fully supported by the CORDEX-CMIP6 checker, verification_against_tables=True is the default and any other setting will be ignored for now.
  • Adjusting several CORDEX-CMIP6 checks to skip the parts of the checks that require CV tables
  • ToDo: make use of esgvoc for these checks
• check_attributes_match_filename: Added CORDEX-CMIP6 filename pattern and reworked project identification

Updates with regards to CMIP6/7 checker:

• check_attributes_match_filename: reworked project identification - instead of trying to identify the project from the file metadata, the chosen checker (eg. wcrp_cmip7) will decide which DRS filename pattern is used. I am not sure if the filename_template_keys parameter is still necessary or what it can be used for.

@Ayoubnac1 This could be merged for the next release. I will be working on the esgvoc checks that shall replace the CV checks asap, but this will be part of another PR.