Add dynamic labels set from list example in the LOAD CSV section

[matea16]

With the new dynamic labels set from the list feature, we can now list multiple labels in one cell of the CSV file we're importing.
Todo: add an example of that under LOAD CSV section of the docs.

Context

Query example:

LOAD CSV FROM "/data.csv"
WITH HEADER AS row
WITH {labels: convert.str2object(row.label)} AS metadata, row
CREATE (n:metadata.labels {name: row.name, id: toInteger(row.id)})
RETURN n;