Alternative title and abstract: Datacite properties/values (metadata schema)

[mattiker]

Hello @ajrbyers ,

Here are the values from the latest Datacite metadata schema 4.5 to include alternative titles and abstracts:

1. Alternative Title
   titleType Property: AlternativeTitle or TranslatedTitle
   The language can be specified.

2. Alternative Abstract
   descriptionType Property: Abstact
   There is an option to choose a language for the description and you can include multiple descriptions.

Also see #6 and openlibhums/janeway#4111