Added authorization callback for '/logging/toggle'.
Added authorization callback for '/logging/toggle'.

This patch adds an authorization callback to the
generating function `CreateAuthorizationCallbacks`
for the '/logging/toggle' endpoint.

Review: https://reviews.apache.org/r/46881/

Gilbert88/mesos,reneploetz/mesos,zmalik/mesos,asamerh4/mesos,dforsyth/mesos,zmalik/mesos,dforsyth/mesos,abudnik/mesos,kaysoky/mesos,Gilbert88/mesos,kaysoky/mesos,Gilbert88/mesos,zmalik/mesos,dforsyth/mesos,Aman-Jain-14/customizedMesos,Gilbert88/mesos,abudnik/mesos,verizonlabs/mesos,neilconway/mesos,andschwa/mesos,andschwa/mesos,craimbert/mesos,jpeach/mesos,chhsia0/mesos,asamerh4/mesos,kaysoky/mesos,jpeach/mesos,reneploetz/mesos,jpeach/mesos,neilconway/mesos,craimbert/mesos,reneploetz/mesos,craimbert/mesos,Gilbert88/mesos,jpeach/mesos,asamerh4/mesos,asamerh4/mesos,kaysoky/mesos,abudnik/mesos,yuquanshan/customizedMesos,Gilbert88/mesos,neilconway/mesos,yuquanshan/customizedMesos,zmalik/mesos,zmalik/mesos,gsantovena/mesos,kaysoky/mesos,abudnik/mesos,dforsyth/mesos,asamerh4/mesos,yuquanshan/customizedMesos,dforsyth/mesos,reneploetz/mesos,reneploetz/mesos,chhsia0/mesos,kaysoky/mesos,andschwa/mesos,abudnik/mesos,chhsia0/mesos,asamerh4/mesos,craimbert/mesos,Aman-Jain-14/customizedMesos,chhsia0/mesos,reneploetz/mesos,chhsia0/mesos,craimbert/mesos,gsantovena/mesos,andschwa/mesos,andschwa/mesos,kaysoky/mesos,jpeach/mesos,neilconway/mesos,andschwa/mesos,yuquanshan/customizedMesos,gsantovena/mesos,reneploetz/mesos,yuquanshan/customizedMesos,chhsia0/mesos,dforsyth/mesos,verizonlabs/mesos,jpeach/mesos,yuquanshan/customizedMesos,jpeach/mesos,neilconway/mesos,andschwa/mesos,yuquanshan/customizedMesos,Gilbert88/mesos,verizonlabs/mesos,abudnik/mesos,Aman-Jain-14/customizedMesos,Aman-Jain-14/customizedMesos,gsantovena/mesos,craimbert/mesos,asamerh4/mesos,verizonlabs/mesos,zmalik/mesos,neilconway/mesos,chhsia0/mesos,gsantovena/mesos,craimbert/mesos,Aman-Jain-14/customizedMesos,zmalik/mesos,gsantovena/mesos,Aman-Jain-14/customizedMesos,abudnik/mesos,verizonlabs/mesos,neilconway/mesos,dforsyth/mesos,gsantovena/mesos,Aman-Jain-14/customizedMesos,verizonlabs/mesos,verizonlabs/mesos