cubicweb-pyramid #11027189 pyramid configurations should NOT be in all-in-one.conf, use pyramid.ini [validation pending]

For now, one MUST set the two options pyramid-auth-secret and pyramid-session-secret in the all-in-one.conf, but any other pyramid config must put in a (standrad) pyrmid.ini file.

It would be much easier to let all the pyramid config in the (standard) pyramid.ini file

prioritynormal
typebug
done in0.4.0
load left0.000
closed by#c3a583e38360 [cfg] remove the pyramid-{auth,session}-secret config options (closes #11027189)
patch[cfg] remove the pyramid-{auth,session}-secret config options (closes #11027189) [applied]