[debug] syntax highlight SQL and RQL debug output This prevent DBG_RQL and DBG_SQL output to looks like a gigantic blob of white text. Do this only if we detect that we are in a tty and that pygments is installed. Closes #17222885

missing-dep-for-interpreter make => make | build-essential | dpkg-dev (usr/*/cubicweb/skeleton/debian/rules)
embedded-javascript-library usr/share/cubicweb/cubes/shared/data/jquery.js