Change to allow passing in secrets in blinka pyportal

[makermelissa]

Tested with current iteration of refactored PyPortal and it works without modification, which is the only one that would have been affected.

[FoamyGuy]

I think this raise needs to get removed, in order for the code to be able to run in environments without a secrets.py file.

Adafruit_CircuitPython_PortalBase/adafruit_portalbase/network.py

Line 48 in d15a11f

raise

I tried to test with the adafruit_pyportal libarary, but found that it will need some modifications in order to support the lack of secrets.py file if we want to use it like this.

I ended up testing these changes successfully (after removing the raise) using adafruit_blinka_pyportal library from the open refactoring PR

The only other minor potential change I noticed is perhaps we want to make some of the docstring wordings a little bit more generic because a few of them refer specifically to a secrets.py file. But this does not prevent the library from working.

[jfurcean]

I think the debugging print statement on line 305 needs to be updated as well.

print("Connecting to AP", secrets["ssid"])

should be

print("Connecting to AP", self._secrets["ssid"])

[makermelissa]

Sounds like good changes. I just pushed those items.

[FoamyGuy]

re-tested successfully after the latest commit. Looks good to me.

Thank you @makermelissa
Nice catch @jfurcean thank you for looking it over as well!