Dataprovider iterator

Add features to dataprovider :

• Pybind iterator for dataProvider with __iter__, __next__ and __len__ implemented functions
• dataProvider shuffle argument to perform random batch permutation for learning
• dataProvider dropLast argument to drop the last non-full batch

Other :

• Add random utils to perform random batch permutation for learning
• Add support for Int8, Int16, Uint8, Uint16 for tensor python binding

include/aidge/utils/Random.hpp

+/********************************************************************************
+ * Copyright (c) 2023 CEA-List
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0.
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ *
+ ********************************************************************************/
+
+
+#ifndef AIDGE_RANDOM_H_
+#define AIDGE_RANDOM_H_
+
+
+#include <algorithm>
+#include <vector>
+#include <random>
+
+namespace Random {
+
+    void randShuffle(std::vector<unsigned int>& vec) {
+        std::random_device rd;
+        std::mt19937 g(rd());
+        std::shuffle(vec.begin(), vec.end(), g);
+    }
+
+}
+
+#endif //AIDGE_RANDOM_H_
\ No newline at end of file