[AAI] Keycloak integration into aai-traversal

In order to support multi-tenancy, keycloak(https://www.keycloak.org/)
as Identity and Access Management has been integrated into aai-traversal
and needs to be configured accordignly based on created instance

Issue-ID: AAI-3300
Signed-off-by: Sam Huang <sam.huang@yoppworks.com>
Change-Id: I393fb98ef6ac9cc6f4bf9d476cd682531d15011e
4 files changed