Adding facility location to user guide

[CBP1012]

The purpose of this pull request is to contribute to the user guide.
This pattern includes mermaid file, SPARQL queries and a readme describing the purpose of the pattern.

Also wanted feedback on the pattern and make sure we are good to use this in a paper.

[alanruttenberg]

Which document is being refered to by "The document" in Structure section, What do you mean when you say "so we can link more than one ICE to the same IBE"

In addition, the title of the PR seems wrong since most of these files are about document fields?

[alanruttenberg]

Please consider the following style, which make the query more readable:

PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
PREFIX cco: <https://www.commoncoreontologies.org/>
PREFIX obo: <http://purl.obolibrary.org/obo/>
PREFIX material_copy_of_a_document: <https://www.commoncoreontologies.org/ont00001298>
PREFIX has_continuant_part: <http://purl.obolibrary.org/obo/BFO_0000178>
PREFIX material_copy_of_a_document_field: <https://www.commoncoreontologies.org/ont00001243>

SELECT ?document (COUNT(?field) AS ?fieldCount)
WHERE {
  ?document rdf:type material_copy_of_a_document: .
  ?document has_continuant_part: ?field .
  ?field rdf:type material_copy_of_a_document_field:.
}
GROUP BY ?document

That said, I don't know why you are using IBEs v ICEs in this pattern.