Merged PR 1095: Add appengine logging, testing environment config

indexer-core/pom.xml

provider/indexer-aws/pom.xml

provider/indexer-azure/pom.xml

provider/indexer-gcp/pom.xml

provider/indexer-gcp/scripts/deploy2gcp.sh.tmpl

provider/indexer-gcp/src/main/appengine/app.yaml

...va/org/opengroup/osdu/indexer/di/AppengineLogFactory.java

.../opengroup/osdu/indexer/di/EntitlementsClientFactory.java

...indexer-gcp/src/main/resources/application-dev.properties

...xer-gcp/src/main/resources/application-testing.properties

...der/indexer-gcp/src/main/resources/application.properties

testing/indexer-test-aws/pom.xml

testing/indexer-test-azure/pom.xml

testing/indexer-test-core/pom.xml