This introduces an initial helm chart for fluent logging.
It provides a functional fluent-bit and fluentd deployment to
use in conjunction with elasticsearch and kibana to consume
and aggregate logs from all resource types in a cluster.
It can deliver logs to kafka for external tools to consume.
This PS moves fluent-logging chart from osh-addons, osh to
osh-infra repo.
previous ps(addon): https://review.openstack.org/#/c/507023/
previous ps(osh): https://review.openstack.org/#/c/514622/
Specification: https://review.openstack.org/#/c/505491/
Partially implements: blueprint osh-logging-framework
Change-Id: I72e580aa3a197550060fc07af8396a7c8368d40b
2862f038e2