cubicweb #2712041 c-c create: make post-create step optional [validation pending]

add a command line option to the "cubicweb-ctl create" command to make the post-create step optionnal.

prioritynormal
typeenhancement
done in3.17.1
load0.250
load left0.000
closed by#0020aa12af07 [c-c create] make post-create step optional (closes #2712041)
patch[c-c create] make post-create step optional (closes #2712041) [applied]