Move CKW prototype to separate directory

Partially resolves: COMPMID-6283
Signed-off-by: Viet-Hoa Do <viet-hoa.do@arm.com>
Change-Id: I7596e3dc357d6f0b9cbe66534523943a73c26d81
Reviewed-on: https://review.mlplatform.org/c/ml/ComputeLibrary/+/9864
Reviewed-by: SiCong Li <sicong.li@arm.com>
Reviewed-by: Jakub Sujak <jakub.sujak@arm.com>
Comments-Addressed: Arm Jenkins <bsgcomp@arm.com>
Tested-by: Arm Jenkins <bsgcomp@arm.com>
Benchmark: Arm Jenkins <bsgcomp@arm.com>
diff --git a/compute_kernel_writer/prototype/examples/common/ExampleScopedKernelWriter.cpp b/compute_kernel_writer/prototype/examples/common/ExampleScopedKernelWriter.cpp
new file mode 100644
index 0000000..7c44fa8
--- /dev/null
+++ b/compute_kernel_writer/prototype/examples/common/ExampleScopedKernelWriter.cpp
@@ -0,0 +1,58 @@
+/*
+ * Copyright (c) 2023 Arm Limited.
+ *
+ * SPDX-License-Identifier: MIT
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include "ExampleScopedKernelWriter.h"
+#include "ExampleKernelWriter.h"
+
+ExampleScopedKernelWriter::ExampleScopedKernelWriter(ExampleKernelWriter *writer)
+    : _writer(writer), _parent_id_space(writer->id_space())
+{
+    _writer->next_id_space();
+}
+
+ExampleScopedKernelWriter::ExampleScopedKernelWriter(const ExampleScopedKernelWriter &other)
+    : _writer(other._writer), _parent_id_space(other._writer->id_space())
+{
+    _writer->next_id_space();
+}
+
+ExampleKernelWriter *ExampleScopedKernelWriter::operator->()
+{
+    return _writer;
+}
+
+const ExampleKernelWriter *ExampleScopedKernelWriter::operator->() const
+{
+    return _writer;
+}
+
+ExampleKernelWriter *ExampleScopedKernelWriter::writer()
+{
+    return _writer;
+}
+
+const ExampleKernelWriter *ExampleScopedKernelWriter::writer() const
+{
+    return _writer;
+}