more tidy code and partly refactor functions for tei:add
- rename prefix fom fontaneTransfo to transfo
- remove small space around tei:add
- remove the xhtml:span[@class="addWrapper"] as it is completely unhandy
- rewritten functions for tei:add
- we are using the same function for anchored and non-anchored tei:add now
- merge 3 functions to 2
there is a corresponding MR at SADE-Project!4 (merged)