* Add dict of attributes to initialize
* Refactor get_attributes() method
Read 5 attributes at the time.
* Add ZCL_INIT_ATTRS attribute to base Zigbee channel
* Update tests and general clusters
* Update channels to use ZCL_INIT_ATTRS
* Update channels to use ZCL_INIT_ATTRS
* Fix tests
* Refactor async_initialize() to be a retryable request
* Maky pylint happy again
* Replace ZHA tests FakeDevice
* Refactor ZHA tests to use zigpy devices and endpoints
* Use common consts for zigpy device mocks
Use the same dict key names for device signature mocks as zha quirks.
* Use const for test device list
* Update tests/components/zha/common.py