CircuitPython Logger fixes

[FoamyGuy]

There were people on discord having some trouble with the uart logging example. In testing I discovered that all 3 uart, ble, and aio had a few issues with them. The bundles downloaded from the learn guide do not work as-is.

They seem to have been refactored at some point to not have proper filenames for ble_handler.py, uart_handler.py, and aio_handler.py which caused the example code not to work since it was trying to import from files with those names.

The handler classes needed to call super().__init__() because without it self.level does not get initialized which leads to an exception raised during handle(). Since the parent class Handler accepts a level argument I added that to each of the subclasses.

The ble_handler seemed to be targeting an older version of adafruit_ble library. I updated a handful of lines to get things working under the current version of the library.

.circuitpython.skip was removed so that actions will run black/pylint on these files, which led to some formatting changes in many of them.

Once this is merged I will update the learn guide page embeds and verify that the new file structure results in bundle downloads that can run on device without modification.

I tested with following hardware:

• uart handler on Feather S3
• AIO handler on PyPortal
• BLE handler on CircuitPlayground Bluefruit