Docx2python

Fix

- move paragraphs to main dependencies

Feat

- support checkox "true"/"false" values

Fix

- extract hyperlinks in comments
- remove open_par limit in DepthCollector
- return empty list when comments fails

Refactor

- comb full-text and line-text formatting
- refactor element text extractors into methods

Feat

- extract comments from docx files
- capture comment ranges

Refactor

- expose DepthCollector instance for File object
- expose DepthCollector instance when get_text

Feat

- capture hyperlink anchors