add an EMSL data example that's not part of monet

[mslarae13]

No description provided.

[mslarae13]

FYI @cmungall @ialarmedalien @jeff-cohere

[mslarae13]

@jeff-cohere this is the emsl example I have that I would liek to see example data for the new structure cuz I'm having a hard time understanding the proposed changes

[jeff-cohere]

Here are some examples I'm fumbling with, taken from this PR and expressed in this language (adding them one at a time, @ialarmedalien , please check me if I've misunderstood something...)

  {
    "attribute": "oxygenation status of sample",
    "attribute_cv_id": "MIXS:0000753",
    "raw_value": "aerobic",
    "value_cv_label": "aerobic"
  },
  {
    "attribute": "sample storage temperature",
    "attribute_cv_id": "MIXS:0000110",
    "raw_value": "-80 degree Celsius",
    "numeric_value":  -80,
    "value_cv_id": <some CV identifier for temperature>,
    "unit_cv_id": <UCUM unit for Celsius>
  },
  {
    "attribute": "collection date",
    "attribute_cv_id": "MIXS:0000011",
    "raw_value": "2021-07-12",
    "datetime": "2021-07-12T00:00:00" # or whatever!
   },
  ...