182 bug weo importer

[lpicci96]

This adds a method to WEO which returns the data in the old weo-reader format.

Note: All WEO data is returned by this function, not just the loaded indicators
Some columns that were present in the old format, are not available in sdmx data files, but these are not used in any analysis so should not cause errors.

@jm-rivera Should I leave it to you to patch this to the WorldEconomicOutlook class?

[jm-rivera]

Attempting to patch but right now it returns this error:

KeyError: "The following id_vars or value_vars are not present in the DataFrame: ['indicator_description']

Is that something you can get in the response? Otherwise i can remove it from the implementation. I don't think we use it in production.

[jm-rivera]

Attempting to patch but right now it returns this error:

KeyError: "The following id_vars or value_vars are not present in the DataFrame: ['indicator_description']

Is that something you can get in the response? Otherwise i can remove it from the implementation. I don't think we use it in production.

I think in the mapping it expects it to be Subject Notes. I think you've given it a different name here.

col_mapper = {
            "concept_code": "WEO Subject Code",
            "ref_area_code": "WEO Country Code",
            "lastactualdate": "Estimates Start After",
            "notes": "Country/Series-specific Notes",
            "unit": "Units",
            "concept": "Subject Descriptor",
            "ref_area": "Country",
            "scale": "Scale",
        }