Field/column `PROCEDURE_SOURCE_CONCEPT_ID` in table `PROCEDURE_OCCURRENCE` should be a foreign key?

[lgautier]

This is similar to issue #774 , #776, and #777.

In versions 5.3 and 6.0 of the CSV file definitions, the field/column PROCEDURE_SOURCE_CONCEPT_ID appears to refer to CONCEPT.CONCEPT_ID and should therefore be a foreign key pointing to it. The field isForeignKey for that row in the CSV is set to No while it should be Yes, in particular since the fields fkTableName and fkFieldName have the values CONCEPT and CONCEPT_ID respectively.