`backend_info/0` reports `Circuits.GPIO.CDev` instead of `:stub` as name

[namxam]

It seems that with the 2.0 release, the old info/0 has been replaced with backend_info/0. At the same time, the function now returns Circuits.GPIO.CDev as the current backend name instead of :stub. Is this intended? Because the docs are still stating that it should be :stub. See https://hexdocs.pm/circuits_gpio/readme.html#testing

[fhunleth]

@namxam Thank you for point this out. This was not intentional at all! I totally missed that I hadn't updated that part and forgot to remove the hack that overrode the :name field when it wasn't ready.

I fixed it in #192.

Now the :name field will properly reflect the way the backend was started. (In hindsight, I wish I chose a different word than :name, but the change in #192 keeps non-test usage of backend_info/0 the same.)

$ MIX_ENV=test iex -S mix
"**** CIRCUITS_GPIO_BACKEND set to [test] ****"
Erlang/OTP 26 [erts-14.2.3] [source] [64-bit] [smp:32:32] [ds:32:32:10] [async-threads:1] [jit:ns]

Interactive Elixir (1.16.2) - press Ctrl+C to exit (type h() ENTER for help)
iex(1)> Circuits.GPIO.backend_info()
%{name: {Circuits.GPIO.CDev, [test: true]}, pins_open: 0}
iex(2)> 

[fhunleth]

Fixed in #192