Create default variables for custom roles

[dano-reisys]

Add the default dir + main.yml with default vars to every role that is missing it.

[JJediny]

@dano-reisys please status...

• [x] catalog
• [x] crm-web
• [x] datagov-web
• [x] efk-nginx
• [x] efk-stack
• [x] elastalert
• [x] elasticsearch
• [x] fluentd
• [x] hardening
• [x] harvester
• [x] inventory
• [x] jekyll
• [x] jumpbox
• [x] kibana
• [x] secops
• [x] solr
• [x] trendmicro
• [x] web-proxy
• [x] webserver-frontend

Others?