feat(option_utils): add withDefault utility for Boost program options

src/common/option_utils.hpp

@@ -0,0 +1,14 @@
+#pragma once
+
+#include <boost/program_options.hpp>
+
+class OptionUtils
+{
+  protected:
+    OptionUtils() = default;
+    ~OptionUtils() = default;
+
+    template <typename T> static auto withDefault(T value);
+};
+
+#include "option_utils.tpp"

src/common/option_utils.tpp

@@ -0,0 +1,8 @@
+#pragma once
+
+#include "option_utils.hpp"
+
+template <typename T> auto OptionUtils::withDefault(T value)
+{
+    return boost::program_options::value<T>()->default_value(value);
+}