Add Schwaiger ZHS-15/SPW35Z-D0 power socket (#3313)

Co-authored-by: Koen Kanters <koenkanters94@gmail.com>

lib/extension/homeassistant.js

@@ -1455,6 +1455,7 @@ const mapping = {
     'U201SRY2KWZB': [cfg.switch],
     'U202SRY2KWZB': [switchWithPostfix('l1'), switchWithPostfix('l2')],
     '93999': [cfg.light_brightness],
+    'ZHS-15': [cfg.switch, cfg.sensor_power, cfg.sensor_current, cfg.sensor_voltage],
     'GS361A-H04': [
         cfg.lock_child_lock,
         cfg.switch_window_detection,