Give further control over code engine resource naming when enabling kibana

[ocofaigh]

Consumers have asked for more control over CE project and app naming.

Currently we hard code them:

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

  Line 438 in 4281fc3

  code_engine_project_name = local.code_engine_project_id != null ? null : (var.prefix != null && var.prefix != "") ? "${var.prefix}-code-engine-kibana-project" : "ce-kibana-project"

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

  Line 439 in 4281fc3

  code_engine_app_name = (var.prefix != null && var.prefix != "") ? "${var.prefix}-kibana-app" : "ce-kibana-app"

Suggest to expose 2 new vars:

• kibana_code_engine_new_project_name (with default value of ce-kibana-project)
• kibana_code_engine_new_app_name (with default value of ce-kibana-app)

[ocofaigh]

PR contribution from @luiof #422

[Ak-sky]

Available in release https://github.com/terraform-ibm-modules/terraform-ibm-icd-elasticsearch/releases/tag/v1.31.0, closing this.