Add an ability to override Kibana image URL in DA

[Ak-sky]

User should have the option to overide Kibana image

terraform-ibm-icd-elasticsearch/solutions/standard/main.tf

Line 315 in a3d5bf0

value = "[\"https://${local.es_host}:${local.es_port}\"]"

[aatreyee2506]

Closing this issue. (Reference for PR)