Merged PR 824: Reuse AppDev CICD template from infrastructure-templates

This is the basic build and test yaml pipeline template reuse that follows the first example in os-storage from #1054

Related work items: #1054, #1055

devops/service-pipeline.yml

+resources:
+  repositories:
+    - repository: infrastructure-templates
+      type: git
+      name: open-data-ecosystem/infrastructure-templates
+
+variables:
+- template: devops/service-pipelines/service-pipeline-variables.yml@infrastructure-templates
+
+stages:
+- template: devops/service-pipelines/service-pipeline-stages.yml@infrastructure-templates