ACE-III update and Mini-ACE

[RudolfCardinal]

Checklist for new tasks:

• [X] Add task to relevant menus
• [X] Generate code documentation
• [X] Update docs/source/changelog.rst
• [X] Test documentation rebuilds without errors
• [ ] If the text of the task cannot be submitted here for copyright reasons, there is a template XML file under server/camcops_server/extra_string_templates.

Please [X] all the boxes above that apply

Only failing test is because miniace.rst not published to camcops.readthedocs.io yet

[RudolfCardinal]

There is also now tablet_qt/tools/clang_format_camcops.py, which has destructive commands like modify (not yet used!) and information commands like diff (including --diffall). This reads clang_format_camcops.yaml and attempts to apply a style reasonably similar to the Python/Black style. May need a bit more iteration; in particular it splits long lines like void somefunc(); // long long comment in between the brackets, though perhaps that just indicates a need for comment reformatting. Anyway, see what you think!

[RudolfCardinal]

Thanks! I'm not sure if you're all done (I think so but a test is running) -- if so, feel free to merge, or I can if you prefer.