IVGCVSW-6635 Move MemCopyTestImpl from acl to armnnTestUtils.

* Move MemCopyTestImpl.hpp from src/backends/aclCommon/test/ to
  include/armnnTestutils.
* Refactor MemCopyTests in aclCommon, cl and Neon.
* Introduce RefMemCopyTests to exercise this utility in x86 builds.

Signed-off-by: Colm Donelan <colm.donelan@arm.com>
Change-Id: I8824f013d3656658ed0a2904bb79384e3af68641
diff --git a/Android.mk b/Android.mk
index fde1ffa..3b1e6da 100644
--- a/Android.mk
+++ b/Android.mk
@@ -453,6 +453,10 @@
         src/armnnUtils/test/TensorUtilsTest.cpp \
         src/armnnTestUtils/CommonTestUtils.cpp \
         src/armnnTestUtils/GraphUtils.cpp \
+        src/armnnTestUtils/MockBackend.cpp \
+        src/armnnTestUtils/MockMemoryManager.cpp \
+        src/armnnTestUtils/MockTensorHandle.cpp \
+        src/armnnTestUtils/MockTensorHandleFactory.cpp \
         src/armnnTestUtils/TensorCopyUtils.cpp \
         src/armnnTestUtils/TestUtils.cpp \
         src/armnnTestUtils/UnitTests.cpp \