create CrossRef event from doi

[WolfgangFahl]

example:

{
  'indexed': {
    'date-parts': [
      [2021, 12, 15]
    ],
    'date-time': '2021-12-15T11:24:33Z',
    'timestamp': 1639567473980
  },
  'reference-count': 0,
  'publisher': 'The MIT Press',
  'isbn-type': [{
    'value': '9780262330275',
    'type': 'print'
  }],
  'content-domain': {
    'domain': [],
    'crossmark-restriction': False
  },
  'short-container-title': [],
  'DOI': '10.7551/978-0-262-33027-5',
  'type': 'proceedings',
  'created': {
    'date-parts': [
      [2015, 7, 18]
    ],
    'date-time': '2015-07-18T12:44:16Z',
    'timestamp': 1437223456000
  },
  'source': 'Crossref',
  'is-referenced-by-count': 3,
  'title': ['07/20/2015-07/24/2015'],
  'prefix': '10.7551',
  'member': '281',
  'published-online': {
    'date-parts': [
      [2015, 7, 20]
    ]
  },
  'event': {
    'name': 'European Conference on Artificial Life 2015',
    'acronym': 'ECAL 2015'
  },
  'container-title': [],
  'original-title': [],
  'deposited': {
    'date-parts': [
      [2018, 7, 24]
    ],
    'date-time': '2018-07-24T14:34:16Z',
    'timestamp': 1532442856000
  },
  'score': 1,
  'subtitle': [],
  'short-title': [],
  'issued': {
    'date-parts': [
      [2015, 7, 20]
    ]
  },
  'ISBN': ['9780262330275'],
  'references-count': 0,
  'URL': 'http://dx.doi.org/10.7551/978-0-262-33027-5',
  'relation': {},
  'published': {
    'date-parts': [
      [2015, 7, 20]
    ]
  }
}