Ensure all text that might appear in cove-ocds is translated into Spanish

[Bjwebb]

As we did for cove-oc4ids last year open-contracting/cove-oc4ids#59 (so a lot of the work has been done).

• Marking any missing sentences in cove-ocds as translatable.
• Pulling in the correct translated version of the schema.
• Adding translatable strings to lib-cove-web for any English validation messages that weren’t already covered for lib-cove-oc4ids (list to check).

Decide whether to translate ocds-show (I would guess probably not, since it's archived).

[Bjwebb]

I've taken the list of valdiator functions that we didn't translate for OC4IDS, and broken it down into categories.

Unlike for OC4IDS, I've not compared the list to our schemas, because extensions in OCDS can have arbitary JSON schema.

Contain 0 error messages:
        u"allOf": _validators.allOf,
        u"patternProperties": _validators.patternProperties,

Just 1 error message:
        u"anyOf": _validators.anyOf,
        u"minItems": _validators.minItems,
        u"minLength": _validators.minLength,
        u"maxItems": _validators.maxItems,
        u"maxLength": _validators.maxLength,
        u"maxProperties": _validators.maxProperties,
        u"multipleOf": _validators.multipleOf,
        u"not": _validators.not_,
        u"type": _validators.type,
        u"format": _validators.format,
        
More than 1 error message: 
        u"additionalItems": _validators.additionalItems,
        u"additionalProperties": _validators.additionalProperties,
        u"maximum": _legacy_validators.maximum_draft3_draft4,
        u"minimum": _legacy_validators.minimum_draft3_draft4,
        u"oneOf": _validators.oneOf,
        u"dependencies": _validators.dependencies,

The first category requires nothing to be done.

The second category should be fairly easy, as we just need to insert the same translated message every time. (As we already do for these cases.)

The third category probably requires us to swap in a modified function in lib-cove, in order to return more information on the validation error object. (As we already do for uniqueness: lib-cove, lib-cove-web.)

My next step will be to write some extended test data that uses all the different validators.

[Bjwebb]

Here's my extended test data, which uses a newly written test extension:

{
        "version": "1.1",
        "extensions": ["https://bjwebb.co.uk/paste/extension_tmp/extension.json"],
        "releases": [{
                "json_schema_example_fields": {
                        "minimum": 1,
                        "minimum2": 2,
                        "maximum": 3,
                        "maximum2": 2,
                        "minItems": ["a"],
                        "maxItems": ["a", "a", "a"],
                        "minLength": "a",
                        "maxLength": "aaa",
                        "maxProperties": {"a":1, "b":2, "c": 3},
                        "multipleOf": 2,
                        "not": "a",
                        "anyOf": "a",
                        "allOf": "a",
                        "oneOf": "a",
                        "oneOf2": 1,
                        "additionalItems": ["a", "a"],
                        "additionalProperties": {"a": 1},
                        "additionalProperties2": {"a": 1},
                        "dependencies": {"b": 1}
                }
        }]
}

I've got all of these translateable locally now. Here's a screenshot with a "pseudo" translation:

Tomorrow I will:

• Tidy up and push what I've done
• Ensure all types and formats are handled
• Pull in the correct translated version of the schema

[Bjwebb]

I pushed my work so far, its across 4 different repos, so we have 4 different PRs:

• lib.common: Modify validators to return more information  OpenDataServices/lib-cove#76
• html_error_msg: Add all strings from jsonschema lib, so we can translate  OpenDataServices/lib-cove-web#73
• common_checks: Modify oneOf validator to return more information lib-cove-ocds#88
• Ensure all text that might appear in cove-ocds is translated into Spanish  #149

Next steps:

• Do plurals properly
• Add my extended schema as a test
• Check if anything else is missing from the pseudo transactions, including uploading some data that will trigger additional checks
• Pulling in the correct translated version of the schema.

[Bjwebb]

These changes are now live https://standard.open-contracting.org/review/