ISTWCMS-6318: merge content type tests into one function
Removed contactContentTypeTest, profileContentTypeTest, projectContentTypeTest, newsItemContentTypeTest, blogContentTypeTest, eventContentTypeTest, opportunityContentTypeTest, serviceContentTypeTest, catalogContentTypeTest, webpageContentTypeTest. Merged them all into one test: contentTypeTest. Separated all functions into two sections: one that needs to be tested with different roles (content editor, content author, and site manager) and one that is only tested with administrator. The test with different roles is placed in a for loop and only switches user in the beginning to save time.