IVGCVSW-4455 Add an Activate and Deactivate control packet to the protocol

 * Add Activate/Deactivate command handlers
 * Add IReportStructure, INotifyBackends single function interfaces
 * Add overrided mechanism to report structure in Runtime.cpp
 * Add overrided mechanism to notify backends in ProfilingService.cpp
 * Add optional IReportStructure argument to ProfilingService constructor
   for use in ActivateTimelineReportingCommandHandler
 * Refactoring and tidying up indentation
 * Removal of unused code in ProfilingUtils.cpp and ProfilingService.cpp
 * Added GatordMock end to end test
 * Fixed an issue with SendCounterPacket sending duplicate packets
 * Fixed an issue with DirectoryCaptureCommandHandler handling of Optional

Signed-off-by: Keith Davis <keith.davis@arm.com>
Signed-off-by: Finn Williams <Finn.Williams@arm.com>

Change-Id: I5ef1b74171459bfc649861dedf99921d22c9e63f
diff --git a/src/profiling/IReportStructure.hpp b/src/profiling/IReportStructure.hpp
new file mode 100644
index 0000000..1ae0497
--- /dev/null
+++ b/src/profiling/IReportStructure.hpp
@@ -0,0 +1,24 @@
+//
+// Copyright © 2020 Arm Ltd. All rights reserved.
+// SPDX-License-Identifier: MIT
+//
+
+#pragma once
+
+namespace armnn
+{
+
+namespace profiling
+{
+
+class IReportStructure
+{
+public:
+    virtual ~IReportStructure() {}
+    virtual void ReportStructure() = 0;
+};
+
+} // namespace profiling
+
+} // namespace armnn
+