Helper functions to work with HtmlData
texthtmlFromHtml produces a html StringtextplainFromHtml produces text String with reasonable layout to mimic htmlBSD
This package needed several dependencies: elm/json, hecrj/html-parser, marcosh/elm-html-to-unicode. I felt it was unnecessary to impose it on the pure data type package HtmlData; anyone else can write their own functions to produce text/html or text/plain String with different dependencies than what I've chosen.