Align kernel/operator header layout

- Redirect validate documentation to configure
- Align header names
- Align class layout

Signed-off-by: Georgios Pinitas <georgios.pinitas@arm.com>
Change-Id: Ia40f67383826a66e9f9a33745d66805551e31a3a
Reviewed-on: https://review.mlplatform.org/c/ml/ComputeLibrary/+/5897
Comments-Addressed: Arm Jenkins <bsgcomp@arm.com>
Tested-by: Arm Jenkins <bsgcomp@arm.com>
Reviewed-by: Michele Di Giorgio <michele.digiorgio@arm.com>
diff --git a/src/runtime/cpu/operators/CpuCopy.h b/src/runtime/cpu/operators/CpuCopy.h
index 057bb6e..861bbb7 100644
--- a/src/runtime/cpu/operators/CpuCopy.h
+++ b/src/runtime/cpu/operators/CpuCopy.h
@@ -34,19 +34,15 @@
 class CpuCopy : public ICpuOperator
 {
 public:
-    /** Constructor */
-    CpuCopy() = default;
     /** Configure operator for a given list of arguments
      *
      * @param[in]  src Source tensor info. Data type supported: All
      * @param[out] dst Destination info. Data type supported: Same as @p src
      */
     void configure(const ITensorInfo *src, ITensorInfo *dst);
-
-    /** Static function to check if given info will lead to a valid configuration of @ref CpuCopy
+    /** Static function to check if given info will lead to a valid configuration
      *
-     * @param[in] src Source tensor info. Data type supported: All
-     * @param[in] dst Destination tensor info. Data type supported: Same as @p src
+     * Similar to @ref CpuCopy::configure()
      *
      * @return a status
      */