Generate Documentation from MS Word templates, Markdown partials and QW data, part 2 (tables)

[tim-band]

As an extension to #25 and using the API extensions developed in #26, add table generation to the document generation capabilities of qw.

A table with a header row and a single body row containing only Mail Merge fields shall be rendered in the output as follows:

• The body row shall be duplicated as many times as required.
• If the fields are in a 1-n relationship with each other, each element of the 1- side of the relation shall be repeated as many times as is necessary to display all the -n side elements and their relationships with the 1- side.