zigpy/zigpy 0.23.0 on GitHub

Changes

Update to black==20.8b1 @Adminiuga (#465)
Update README.md with more related related projects for reference @Hedda (#458)
Simplify attribute record types in foundation @puddly (#457)
Update CONTRIBUTING.md with zigpy API info from pipiche38 @Hedda (#461)
Add coding standards recommendation to contribute section in README.md @Gamester17 (#459)
Update setup.py and tox.ini to fully setup the testing env with pip @puddly (#460)
Concrete List/LVList/FixedList types @puddly (#446)
Update README.md to list all TI CC1352x and CC2652x chips @Hedda (#449)
Simplify some structs by using t.StructField(requires=...) instead of custom serialize/deserialize methods @puddly (#456)
Update README.md to mention ITEAD Sonoff ZBBridge with Tasmota @Hedda (#447)
Make fixed-size integers and Enum subclasses' types behave properly @puddly (#444)
Implement Half-precision floating point numbers @puddly (#445)
Rewrite t.Struct to use type annotations @puddly (#440)