[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

     1

etc/init.d

     2

etc/cubicweb.d

     3

usr/bin

     4

var/log/cubicweb

     5

var/lib/cubicweb/backup

     6

var/lib/cubicweb/instances