[infolabels] Make sure that parsed persons have a name

[CastagnaIT]

Check if this PR fulfills these requirements:

• [ ] My changes respect the Kodi add-on development rules
• [ ] I have read the CONTRIBUTING document.
• [ ] I made sure there wasn't another Pull Request opened for the same update/change
• [ ] I have successfully tested my changes locally

Types of changes

• [ ] New feature (non-breaking change which adds functionality)
• [ ] Feature change (non-breaking change which changes behaviour of an existing functionality)
• [ ] Improvement (non-breaking change which improves functionality)
• [x] Bug fix (non-breaking change which fixes an issue)
• [ ] Breaking change (fix or feature that would cause existing functionality to change)
• [ ] Refactor (non-breaking performance or readability improvements)

Description

Looks like we have found one of website bugs, on the second response of the requested menu list data2.json the "person" list have the ID 60008166 that have a empty value on "name" field this should not happens but yeah one of many website weirdness

            "60008166": {
                "id": {
                    "$type": "atom",
                    "value": 60008166
                },
                "name": {
                    "$type": "atom",
                    "value": ""
                }
            },

the change take care that all values taken from "person" list are not empty

fix #1655 superseeds #1664