Add Seeed Studio mmWave Kit MR24HPC1 (#5761)

Co-authored-by: Jesse Hills <3060199+jesserockz@users.noreply.github.com>
Co-authored-by: Peter Pan <twinkle-pirate@hotmail.com>

esphome/components/seeed_mr24hpc1/number/motion_threshold_number.cpp

@@ -0,0 +1,9 @@
+#include "motion_threshold_number.h"
+
+namespace esphome {
+namespace seeed_mr24hpc1 {
+
+void MotionThresholdNumber::control(float value) { this->parent_->set_motion_threshold(value); }
+
+}  // namespace seeed_mr24hpc1
+}  // namespace esphome