Add test_runner service

This is a new service with client and provider that can be
used for running tests in a secure processing environment
and retrieving the results.  The test_runner provider allows
for arbitrary test farmework backends.  The goal is to
have a cpputest backend.  In this commit, a mock backend
is included for testing the service itself.  The service
has its own access protocol defined under the protocols
top-level directory.

Signed-off-by: Julian Hall <julian.hall@arm.com>
Change-Id: If4e965c110763bd805abbdcb87e7e03cd76248b2
diff --git a/deployments/component-test/component-test.cmake b/deployments/component-test/component-test.cmake
index 2d7c21a..0e6fd1b 100644
--- a/deployments/component-test/component-test.cmake
+++ b/deployments/component-test/component-test.cmake
@@ -36,6 +36,7 @@
 		"components/service/locator/test"
 		"components/service/locator/standalone"
 		"components/service/locator/standalone/services/crypto"
+		"components/service/locator/standalone/services/test-runner"
 		"components/service/crypto/client/cpp"
 		"components/service/crypto/client/cpp/protobuf"
 		"components/service/crypto/client/cpp/packed-c"
@@ -55,6 +56,9 @@
 		"components/service/secure_storage/provider/secure_flash_store/flash_fs"
 		"components/service/secure_storage/provider/secure_flash_store/flash"
 		"components/service/secure_storage/test"
+		"components/service/test_runner/provider"
+		"components/service/test_runner/provider/serializer/packed-c"
+		"components/service/test_runner/provider/backend/null"
 		"protocols/rpc/common/protobuf"
 		"protocols/rpc/common/packed-c"
 		"protocols/service/crypto/packed-c"