Add Chef Infra Client 16 release notes
Add Chef Infra Client 16 release notes

Signed-off-by: Tim Smith <764ef62106582a09ed09dfa0b6bff7c05fd7d1e4@chef.io>
Co-Authored-By: pete higgins <e3b6cda228242c30b711ac17cb264f1dbadfd0b6@peterhiggins.org>

chef/chef,mattray/chef,MsysTechnologiesllc/chef,mwrock/chef,MsysTechnologiesllc/chef,nvwls/chef,MsysTechnologiesllc/chef,nvwls/chef,higanworks/chef,mattray/chef,tas50/chef-1,mwrock/chef,nvwls/chef,MsysTechnologiesllc/chef,tas50/chef-1,mwrock/chef,jaymzh/chef,mattray/chef,tas50/chef-1,jaymzh/chef,higanworks/chef,gene1wood/chef,tas50/chef-1,nvwls/chef,nvwls/chef,mwrock/chef,nvwls/chef,higanworks/chef,chef/chef,gene1wood/chef,mattray/chef,jaymzh/chef,gene1wood/chef,higanworks/chef,mattray/chef,chef/chef,higanworks/chef,gene1wood/chef,chef/chef,jaymzh/chef