cubicweb #2709702 allow to pass instance creation options as command line arguments [validation pending]

In order to be able to manage cw using tools like salt or puppet, we need to be able to create and configure an instance from command line arguments. Each and every configuration option should be available as command argument for cubicweb-ctl create command

done in3.17.1
load left0.000
closed by#f98d1c46ed9f [cwctl] add configure command to cw-ctl (closes #2709702)
patch[c-c create] make it possible to pass system source configurations as command line arguments (closes #2709702) [rejected][c-c create] allow to pass command line options to instance creation command (closes #2709702) [rejected][cwctl] add configure command to cw-ctl (closes #2709702) [applied]