Refactor Smoothing type to its own file

Add log to boost

bayesnet/network/Smoothing.h

@@ -0,0 +1,15 @@
+// ***************************************************************
+// SPDX-FileCopyrightText: Copyright 2024 Ricardo Montañana Gómez
+// SPDX-FileType: SOURCE
+// SPDX-License-Identifier: MIT
+// ***************************************************************
+
+#ifndef SMOOTHING_H
+#define SMOOTHING_H
+enum class Smoothing_t {
+    NONE = -1,
+    ORIGINAL = 0,
+    LAPLACE,
+    CESTNIK
+};
+#endif // SMOOTHING_H