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/ts-remote-test/ts-remote-test.cpp b/deployments/ts-remote-test/ts-remote-test.cpp
new file mode 100644
index 0000000..1c708f6
--- /dev/null
+++ b/deployments/ts-remote-test/ts-remote-test.cpp
@@ -0,0 +1,55 @@
+// SPDX-License-Identifier: BSD-2-Clause
+/*
+ * Copyright (c) 2021, Arm Limited and Contributors. All rights reserved.
+ */
+
+#include <service/test_runner/client/cpp/test_runner_client.h>
+#include <app/remote-test-runner/remote_test_runner.h>
+#include <protocols/rpc/common/packed-c/encoding.h>
+#include <service_locator.h>
+#include <rpc_caller.h>
+#include <cstdio>
+
+int main(int argc, char *argv[]) {
+	(void) argc;
+	(void) argv;
+
+	int status = -1;
+	struct service_context *test_runner_service_context = NULL;
+
+	service_locator_init();
+
+	test_runner_service_context = service_locator_query("sn:trustedfirmware.org:test-runner:0", &status);
+
+	if (test_runner_service_context) {
+
+		struct rpc_caller *caller;
+		rpc_session_handle rpc_session_handle;
+
+		rpc_session_handle = service_context_open(test_runner_service_context, TS_RPC_ENCODING_PACKED_C, &caller);
+
+		if (rpc_session_handle) {
+
+			test_runner_client test_runner_client(caller);
+			remote_test_runner commandline_runner(&test_runner_client);
+
+			status = commandline_runner.execute(argc, argv);
+
+			if (status != 0) {
+				printf("Command failed with test status: %d rpc status: %d\n", status, test_runner_client.err_rpc_status());
+			}
+
+			service_context_close(test_runner_service_context, rpc_session_handle);
+		}
+		else {
+			printf("Failed to open rpc session\n");
+		}
+
+		service_context_relinquish(test_runner_service_context);
+	}
+	else {
+		printf("Failed to discover test_runner service\n");
+	}
+
+	return status;
+}