added modules for test report doc implementation

- added six, markupsafe, jinja2, html5lib, PyPDF2, reportlab, xhtml2pdf
modules for implementation of html and pdf test report generation
- jinja2, it’s dependency markupsafe for templating
- the rest are all dependencies for xhtml2pdf
- conscious choice to explicitly include all modules in project rather
than install them and have others install them, otherwise would’ve just
used sphinx