Create a `Name` entity

[pudo]

This is a bigger migration so I'm just creating this as a tracking topic to collect all the related discussion. We may - in the future - want to introduce a Name entity, which could be linked to a LegalEntity. Each Name would have a full name, language, script, and the various name parts available on person, company and legal entity right now:

• firstName -> givenName
• lastName -> familyName
• middleName
• tribalName
• honrificSuffix
• title

This way, all name parts belonging to a full name would be grouped, whereas currently they're in the main entity's properties and cannot be re-associated with each other.

[simonwoerpel]

💯 up for it as this would be totally in line with what OpenAleph is going for...