IVGCVSW-7555 Restructure Delegate

* New folders created:
  * common is for common code where TfLite API is not used
  * classic is for existing delegate implementations
  * opaque is for new opaque delegate implementation,
  * tests is for shared between existing Delegate and Opaque Delegate which have test utils to work which delegate to use.
* Existing delegate is built to libarmnnDelegate.so and opaque delegate is built as libarmnnOpaqueDelegate.so
* Opaque structure is introduced but no API is added yet.
* CmakeList.txt and delegate/CMakeList.txt have been modified and 2 new CmakeList.txt added
* Rename BUILD_ARMNN_TFLITE_DELEGATE as BUILD_CLASSIC_DELEGATE
* Rename BUILD_ARMNN_TFLITE_OPAQUE_DELEGATE as BUILD_OPAQUE_DELEGATE

Signed-off-by: Teresa Charlin <teresa.charlinreyes@arm.com>
Change-Id: Ib682b9ad0ac8d8acdc4ec6d9099bb0008a9fe8ed
diff --git a/cmake/OpaqueDelegateVersion.cmake b/cmake/OpaqueDelegateVersion.cmake
new file mode 100644
index 0000000..d6ae1ba
--- /dev/null
+++ b/cmake/OpaqueDelegateVersion.cmake
@@ -0,0 +1,18 @@
+#
+# Copyright © 2023 Arm Ltd and Contributors. All rights reserved.
+# SPDX-License-Identifier: MIT
+#
+
+# Read the ArmNN Delegate version components from file
+file(READ ${CMAKE_CURRENT_LIST_DIR}/../delegate/opaque/include/Version.hpp opaqueDelegateVersion)
+
+# Parse the ArmNN Delegate version components
+string(REGEX MATCH "#define OPAQUE_DELEGATE_MAJOR_VERSION ([0-9]*)" _ ${opaqueDelegateVersion})
+set(OPAQUE_DELEGATE_MAJOR_VERSION ${CMAKE_MATCH_1})
+string(REGEX MATCH "#define OPAQUE_DELEGATE_MINOR_VERSION ([0-9]*)" _ ${opaqueDelegateVersion})
+set(OPAQUE_DELEGATE_MINOR_VERSION ${CMAKE_MATCH_1})
+
+# Define LIB version
+set(OPAQUE_DELEGATE_LIB_VERSION "${OPAQUE_DELEGATE_MAJOR_VERSION}.${OPAQUE_DELEGATE_MINOR_VERSION}")
+# Define LIB soversion
+set(OPAQUE_DELEGATE_LIB_SOVERSION "${OPAQUE_DELEGATE_MINOR_VERSION}")
\ No newline at end of file