NeoPXL8 Library on RP2040 instantiates a NeoPixel object which claims an unnecessary state machine

[MarcusGarfunkel]

• Arduino board: INSERT ARDUINO BOARD NAME/TYPE HERE
  Raspberry Pi Pico

• Arduino IDE version (found in Arduino -> About Arduino menu): INSERT ARDUINO
  VERSION HERE
  Arduino IDE 2.0.4

• List the steps to reproduce the problem below (if possible attach a sketch or
  copy the sketch code in too): LIST REPRO STEPS BELOW
  When instantiating a NeoPXL8 object, a NeoPixel object is automatically instantiated. Unfortunately, the claiming of a pio sm is done in the constructor of the NeoPixel, when in this case it is not necessary. The NeoPXL8 constructor creates its own sm and whatnot. This causes a waste of a sm.
  MarcusEdit NeoPixel.zip
  See edits to library files for a fix that seems to work for me.
  Example script that reproduces issue:
  2023_03_21_NeoPXL8_Issues_V0_005.zip

[MarcusGarfunkel]

Created PR #352 for this issue.