async++, small powerstrip improvements (#46)

* async++, small powerstrip improvements

* use asyncclick instead of click, allows defining the commands with async def to avoid manual eventloop/asyncio.run handling
* improve powerstrip support:
  * new powerstrip api: turn_{on,off}_by_{name,index} methods
  * cli: fix on/off for powerstrip using the new apis
* add missing update()s for cli's hsv, led, temperature (fixes #43)
* prettyprint the received payloads when debug mode in use
* cli: debug mode can be activated now with '-d'

* update requirements_test.txt

* remove outdated click-datetime, replace click with asyncclick

* debug is a flag

* make smartstripplug to inherit the sysinfo from its parent, allows for simple access of general plug properties

* proper bound checking for index accesses, allow controlling the plug at index 0

* remove the mess of turn_{on,off}_by_{name,index}, get_plug_by_{name,index} are enough.

* adapt cli to use that
* allow changing the alias per index

* use f-strings consistently everywhere in the cli

* add tests for get_plug_by_{index,name}

kasa/protocol.py

@@ -13,6 +13,7 @@ import asyncio
 import json
 import logging
 import struct
+from pprint import pformat as pf
 from typing import Any, Dict, Union
 
 _LOGGER = logging.getLogger(__name__)
@@ -67,9 +68,10 @@ class TPLinkSmartHomeProtocol:
                 await writer.wait_closed()
 
         response = TPLinkSmartHomeProtocol.decrypt(buffer[4:])
-        _LOGGER.debug("< (%i) %s", len(response), response)
+        json_payload = json.loads(response)
+        _LOGGER.debug("< (%i) %s", len(response), pf(json_payload))
 
-        return json.loads(response)
+        return json_payload
 
     @staticmethod
     def encrypt(request: str) -> bytes: