move sysctl and other tuning to common ansible role

[wallies]

https://github.com/Capgemini/Apollo/blob/scaling/roles/haproxy/tasks/sysctl-tunning.yml
include tuning like this https://github.com/voceconnect/afterburner-ansible/blob/master/roles/common/files/etc-sysctl.d-99-tuning.conf