Add configuration flow abilites to the ld2410 component (#4434)

esphome/components/ld2410/select/baud_rate_select.h

@@ -0,0 +1,18 @@
+#pragma once
+
+#include "esphome/components/select/select.h"
+#include "../ld2410.h"
+
+namespace esphome {
+namespace ld2410 {
+
+class BaudRateSelect : public select::Select, public Parented<LD2410Component> {
+ public:
+  BaudRateSelect() = default;
+
+ protected:
+  void control(const std::string &value) override;
+};
+
+}  // namespace ld2410
+}  // namespace esphome