2022-04-25: Modify no_orphaned.adoc to capture orphaned biomaterials

[ESapenaVentura]

Describe the issue

As a data wrangler, I would like the tests to correctly detect orphaned entities. More information in dcp-943

Test modification

• Test name:
• Test Description:
• Cypher query:

  MATCH (n)
  WHERE NOT EXISTS (n)--(:process)
  AND NOT (n:supplementary_file) 
  AND NOT (n:process)
  RETURN n, "Entity does not have linkings with any other entity", labels(n)

Acceptance criteria

• [ ] The test has been reviewed
• [ ] The test has been implemented into the graph_test_set folder