create_from_excel/pandas return as list of concepts that are worngly defined in the excelfile

[francescalb]

Description:

closes #393
A dictionary with lists of concepts that are wrongly defined is returned as well as the
produced ontology and catalog when using the --force option in create_from_excel.

The keys of the dictionary are keys on why these concepts are in the given list.

Different keys are returned for the following reasons:

• "already_defined": These are concepts that are already in the ontology, either because they were already added in a previous line of the excelfile/pandas dataframe, or because it is already defined in the imported ontologies.
• "in_imported_ontologies": Concepts that are defined in the excel, but already exist in the imported ontologies. This is a subset of the 'already_defined'
• "wrongly_defined": Concepts that are given an invalid prefLabel (e.g. with a space in the name).
• "missing_parents": Concepts that are missing parents. These concepts are added in the top of the ontology.
• "invalid_parents": Concepts that invalidly defined parents.These concepts are added in the top of the ontology.
• "nonadded_concepts": List of all concepts that are not added, either because the prefLabel is invalid, or because the concept has already been added once or already exists in an imported ontology.

Type of change:

• Bug fix.
• New feature.
• Documentation update.

Checklist:

This checklist can be used as a help for the reviewer.

• Is the code easy to read and understand?
• Are comments for humans to read, not computers to disregard?
• Does a new feature has an accompanying new test (in the CI or unit testing schemes)?
• Has the documentation been updated as necessary?
• Does this close the issue?
• Is the change limited to the issue?
• Are errors handled for all outcomes?
• Does the new feature provide new restrictions on dependencies, and if so is this documented?

Comments: