Compute kernel writer API and prototype

* Add the public API for compute kernel writer.
* Use the prototype as the implementation of the public API.

Resolves: COMPMID-5790
Signed-off-by: Viet-Hoa Do <viet-hoa.do@arm.com>
Change-Id: I9d80e15325e1d953feb87c1f2eb61a587bb9ab5e
Reviewed-on: https://review.mlplatform.org/c/ml/ComputeLibrary/+/9814
Reviewed-by: Jakub Sujak <jakub.sujak@arm.com>
Tested-by: Arm Jenkins <bsgcomp@arm.com>
Comments-Addressed: Arm Jenkins <bsgcomp@arm.com>
Benchmark: Arm Jenkins <bsgcomp@arm.com>
diff --git a/compute_kernel_writer/.clang-format b/compute_kernel_writer/.clang-format
new file mode 100644
index 0000000..b2b21d7
--- /dev/null
+++ b/compute_kernel_writer/.clang-format
@@ -0,0 +1,47 @@
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