Set up interaction-service-testing project.

Test: n/a
Relnote: n/a

Change-Id: Idae4adbb99c5e370046a812fc99d5212249e9dda
diff --git a/settings.gradle b/settings.gradle
index 3b8009a..d8d2c4b91 100644
--- a/settings.gradle
+++ b/settings.gradle
@@ -429,6 +429,7 @@
 includeProject(":appactions:interaction:interaction-proto", [BuildType.MAIN])
 includeProject(":appactions:interaction:interaction-service", [BuildType.MAIN])
 includeProject(":appactions:interaction:interaction-service-proto", [BuildType.MAIN])
+includeProject(":appactions:interaction:interaction-service-testing", [BuildType.MAIN])
 includeProject(":appactions:interaction:integration-tests:testapp", [BuildType.MAIN])
 includeProject(":appcompat:appcompat", [BuildType.MAIN])
 includeProject(":appcompat:appcompat-benchmark", [BuildType.MAIN])