Reworked the fileprovider to proxy data directly from the provider
rather than attempt to funkily redirect when needed, since it was overly
complex and wouldn't work well in the long run. Temporarily added "file"
as constant return for determining the filetype through Backblaze.
Added a Makefile to make life easier as well, and rewrote the README to
reflect the refactor/rewrite and new approach to providers.
Expanding this as we go, currently have POC Backblaze B2 support and
basic 'disk' provider as well. Still WIP, but functional for the most
part. Also moving to simplified YAML configuration.
Overall, simplifying things to be extensible down the line. Still work
to be done, but coming along nicely.