Add Class to discover all switchbots, all curtain bots or all bot (woHand) (#23)

* New class to fetch all switchbot device data for all devices in range.

* Method to return all switchbot info

* Update __init__.py

* Update __init__.py

* Refactor code into methods

* Update __init__.py

* Update __init__.py

* Update __init__.py

* Add invert for switch, cleanup variable names

* Add method for spesific mac to Switchbots class, inverse isOn check, add get is calibrated to main switchbot class.

* Add temperature sensor to discovery. (I have no way to test this)

* Update __init__.py

* Update setup.py

* Remove waiting time. This can be handled by hassio

* Restructured switchbot base class for device discovery and single poll for all device updates.

* Update __init__.py

* Update __init__.py

* Update __init__.py

* Update __init__.py

* Prevent additional runs if update fails.

* Update __init__.py

* Update __init__.py

* Update __init__.py

* Update __init__.py

* Update __init__.py

* Update setup.py

Co-authored-by: Daniel Hjelseth Høyer <mail@dahoiv.net>

* Update switchbot/__init__.py

Co-authored-by: Daniel Hjelseth Høyer <mail@dahoiv.net>

* New class for device scanning.

* Changed scan timeout and retry count to use same variable format as rest of class.

* Handle _connect, _writekey and _disconnect via CONNECT_LOCK.

* SwitchbotDevice only returns data if update is called, btle interface can be specified on scanning methods.

-Add basic error handling to prevent key errors on discovery exceptions.

* Small key reference fix in GetSwitchbotDevices class.

* Cleanup pointless error handling code.

Co-authored-by: Daniel Hjelseth Høyer <mail@dahoiv.net>

Author: RenierM26

setup.py

@@ -4,7 +4,7 @@
     name = 'PySwitchbot',
     packages = ['switchbot'],
     install_requires=['bluepy'],
-    version = '0.10.1',
+    version = '0.11.0',
     description = 'A library to communicate with Switchbot',
     author='Daniel Hjelseth Hoyer',
     url='https://github.com/Danielhiversen/pySwitchbot/',