Set prettier's proseWrap to never for Markdown files so paragraphs are
written and formatted as a single line rather than manually wrapped at
a fixed column, matching the convention already used in AGENTS.md.
Fixes: RIPD-1521
Switch to pure doxygen HTML for developer docs. Remove docca/boostbook
system. Convert consensus document to markdown. Add existing markdown
files to doxygen input set. Fix some image paths and scale images for
use with MD links. Rename/cleanup some files for consistency.
Add pipeline logic for windows slaves. Add ninja and parallel test run
option. Add make doc target build in build-and-test.sh. Cleanup README
files. Add nounity windows build. Add link to jenkins summary table.
Add rippled_classic build (win). Improve formatting of summary table.
