Add basic server usage information to gather-logs
Add basic server usage information to gather-logs

This gives us important information like the number of nodes that may
impact troubleshooting.

Signed-off-by: Tim Smith <764ef62106582a09ed09dfa0b6bff7c05fd7d1e4@chef.io>

chef/chef-server,chef/chef-server,chef/chef-server,chef/chef-server,chef/chef-server,chef/chef-server