Add and remove taxonomies: Add tags
To add a new tag you will need to perform the following:
    - Use TaxonomyManagerwhich is the manager class for taxonomies.
- Get the Tagstaxonomy object.
- Create a new taxon of type FlatTaxon.
- Assign the Tagstaxonomy to the taxon item that you created.
- Add the taxon to the Tagstaxonomy.
- Call the manager’s SaveChangesmethod to persist the changes to the database.
Use the following code sample: