Add setter for channel R/C attr lists...
Add setter for channel R/C attr lists...

Add setter for `a[01]_series_(resis|capaci)tance` Python attributes.

Fixes #38.

wheeler-microfluidics/dmf-control-board-firmware,wheeler-microfluidics/dmf-control-board-firmware,wheeler-microfluidics/dmf_control_board_plugin,wheeler-microfluidics/dmf-control-board-firmware,wheeler-microfluidics/dmf-control-board-firmware