Add new Component: Ultrasonic Distance Sensor JSN-SR04T (#6023)

Co-authored-by: Jesse Hills <3060199+jesserockz@users.noreply.github.com>

esphome/components/jsn_sr04t/jsn_sr04t.h

@@ -0,0 +1,28 @@
+#pragma once
+
+#include <vector>
+
+#include "esphome/core/component.h"
+#include "esphome/components/sensor/sensor.h"
+#include "esphome/components/uart/uart.h"
+
+namespace esphome {
+namespace jsn_sr04t {
+
+class Jsnsr04tComponent : public sensor::Sensor, public PollingComponent, public uart::UARTDevice {
+ public:
+  // Nothing really public.
+
+  // ========== INTERNAL METHODS ==========
+  void update() override;
+  void loop() override;
+  void dump_config() override;
+
+ protected:
+  void check_buffer_();
+
+  std::vector<uint8_t> buffer_;
+};
+
+}  // namespace jsn_sr04t
+}  // namespace esphome