Jsonify Boards and Chips for easier importing

[makermelissa]

This resolves #447.

The boards I would like to make sure this passes on include:

• Raspberry Pi 5
• Raspberry Pi 4
• Some other Linux board like an Orange Pi
• A board running MicroPython like the Pi RP2040
• A board detected as RP2040_U2IF

I think that should cover enough different types to show it works. This is because not all boards have importlib such as the MicroPython boards, which will likely need to retain the if/else structure.

[makermelissa]

It looks like RP2040_U2IF runs on the computer itself, so importlib should be available. For micropython, it looks like __import__() may work.

[makermelissa]

I was able to write some import and path functions that work with both linux and MicroPython.

[makermelissa]

It's currently failing because it's dependent on adafruit/Adafruit_Python_PlatformDetect#408

[makermelissa]

Almost done working on this and testing. Turns out there is a bunch of tech debt I need to clean up (this was done in #1042), but Blinka should work much better when finished.

[makermelissa]

I think at this point it's mostly just testing left. I was able to run it successfully on MicroPython and the Binho Nova (similar to the RP2040_U2IF). The rest of the boards should just work as it's really Python vs MicroPython.

[makermelissa]

This has been successfully tested on the following boards:

• Raspberry Pi 4
• Raspberry Pi 5
• ODROID C2
• Raspberry Pi Pico 2 W running MicroPython
• Feather RP2040 with RP2040_U2IF Firmware
• Binho Nova

Once merged, this should be a major release update.

[tannewt]

One question. Looks like a good clean up!

[makermelissa]

I refactored the microcontroller import code. I left the board import code the same as it is a slightly simpler format. I retested on MicroPython and a Pi 5. Everything else should work just fine if those 2 are passing.

[tannewt]

Looks better. Thanks!