Add skeleton for newport (NEW) metadata, waiting for specifics

Develop docs - 

Update pre-commit to not specify version, use format strings in make_…

Black autoformat

Make filter algorithm process any channels

Erin (Josh) Rigler authored 5 years ago and Claycomb, Abram Earl committed 5 years ago

Force miniseed factory constructor to create at least an empty list to
hold list of channels to convert.

Update filter coefficients

WIP: Adds support for FGE volts channels.

Update output factory args