Add missing direct conv2d tests to dynamic fusion

* Add direct conv2d tests as a separate fixture so that we can enable
future direct conv2d specific tests
* Move Conv2dAttributes to its own file

Partially resolves COMPMID-5736

Change-Id: I530649488faf3bbed1a4fc7d16a74063bfdf33db
Signed-off-by: SiCong Li <sicong.li@arm.com>
Reviewed-on: https://review.mlplatform.org/c/ml/ComputeLibrary/+/8928
Reviewed-by: Gunes Bayir <gunes.bayir@arm.com>
Comments-Addressed: Arm Jenkins <bsgcomp@arm.com>
Benchmark: Arm Jenkins <bsgcomp@arm.com>
Tested-by: Arm Jenkins <bsgcomp@arm.com>
diff --git a/arm_compute/dynamic_fusion/sketch/attributes/Conv2dAttributes.h b/arm_compute/dynamic_fusion/sketch/attributes/Conv2dAttributes.h
new file mode 100644
index 0000000..58102d8
--- /dev/null
+++ b/arm_compute/dynamic_fusion/sketch/attributes/Conv2dAttributes.h
@@ -0,0 +1,65 @@
+/*
+ * Copyright (c) 2022-2023 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.
+ */
+#ifndef ARM_COMPUTE_DYNAMIC_FUSION_SKETCH_ATTRIBUTES_CONV2DATTRIBUTES
+#define ARM_COMPUTE_DYNAMIC_FUSION_SKETCH_ATTRIBUTES_CONV2DATTRIBUTES
+
+#include "arm_compute/core/Size2D.h"
+#include "arm_compute/core/Types.h"
+#include <cstdint>
+
+namespace arm_compute
+{
+namespace experimental
+{
+namespace dynamic_fusion
+{
+/** Attributes are backend-agnostic parameters (in addition to the input/output tensors) of an operator.
+ */
+
+/** Conv2d attributes */
+class Conv2dAttributes
+{
+public:
+    /** Set padding */
+    Conv2dAttributes &pad(const Padding2D &pad);
+    /** Get padding */
+    Padding2D pad() const;
+    /** Set stride */
+    Conv2dAttributes &stride(const Size2D &stride);
+    /** Get stride */
+    Size2D stride() const;
+    /** Set dilation */
+    Conv2dAttributes &dilation(const Size2D &dilation);
+    /** Get dilation */
+    Size2D dilation() const;
+
+private:
+    Padding2D _pad{};              /**< Padding */
+    Size2D    _stride{ 1U, 1U };   /**< Stride */
+    Size2D    _dilation{ 1U, 1U }; /**< Dilation */
+};
+} // namespace dynamic_fusion
+} // namespace experimental
+} // namespace arm_compute
+#endif /* ARM_COMPUTE_DYNAMIC_FUSION_SKETCH_ATTRIBUTES_CONV2DATTRIBUTES */