Support for esp-zigbee-sdk v2.0

[luar123]

Started to implement support for the new zigbee sdk in the v2 branch

For now there are a few limitations and issues:

• When using an old Zigbee 1.2 coordinator reporting is not not working directly after joining only after the first reboot.
• Sleepy devices are not working with all coordinators Sleepy end device can not join Zigbee 1.2 coordinator espressif/esp-zigbee-sdk#828.
• trust_center_key is not implemented (please create a PR, I can't test)
• Zigbee now uses the default nvs partition, so you can do Wifi OTA update but still need to re-join the network.

Please test and report issues here. Once most stuff is working I will push it to the master branch.

For general discussion you can use #93

Fixed:

• the default value of mandatory attributes can not be changed. This is mostly an issue for clusters where you want to set a value and never change it (e.g. to define color capabilities of a light)
• device_version not implemented
• no idf 6 support
• there might be issues with some coordinators
• Best is to run esptool erase-flash. No wifi OTA.
• time is not implemented
• reporting and on_report is not fully implemented
• sleepy devices

[luar123]

reserved

[luar123]

Update:
sdk v2.0.1 solves all open issues. Still more testing is needed and not everything is implemented.

[luar123]

Wifi OTA should work now because the zigbee storage partition is not needed anymore. Once reporting works properly I will merge into master.