IVGCVSW-6687 Implement ICLTensorProxy

 * Implement ICLTensorProxy and unit tests
 * Remove IClImportTensorHandle and use IClTensorHandle to access ICLTensor

Signed-off-by: Narumol Prangnawarat <narumol.prangnawarat@arm.com>
Change-Id: I791d0f2c6f8bad841a56e39e196baf0e533c7124
diff --git a/src/backends/cl/test/CMakeLists.txt b/src/backends/cl/test/CMakeLists.txt
index 9840b82..434cdb8 100644
--- a/src/backends/cl/test/CMakeLists.txt
+++ b/src/backends/cl/test/CMakeLists.txt
@@ -20,6 +20,7 @@
     ClWorkloadFactoryHelper.hpp
     DefaultAllocatorTests.cpp
     Fp16SupportTest.cpp
+    ICLTensorProxyTests.cpp
     OpenClTimerTest.cpp
 )