ISTWCMS-6367: Added function to test catalog links

Merged Jovan Fang requested to merge feature/ISTWCMS-6367-j8fang-catalog-term-correct-link into 3.2.x

ISTWCMS-6367: Added function CatalogTermLink(), helper functions createCatalogTaxonomy() and createCatalogItem(), and alphanumeric option to uwRandomString()

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