Add Kong to addons
Add Kong to addons

Obsoletes #1242

phnmnl/mantl,datascienceinc/mantl,bitium/mantl,mantl/mantl,mantl/mantl,bitium/mantl,CiscoCloud/microservices-infrastructure,datascienceinc/mantl,KaGeN101/mantl,sehqlr/mantl,sehqlr/mantl,CiscoCloud/mantl,KaGeN101/mantl,phnmnl/mantl,CiscoCloud/microservices-infrastructure,ContainerSolutions/microservices-infrastructure,CiscoCloud/mantl,ContainerSolutions/microservices-infrastructure