archived bandwidth scanner files lack explicit source attibution

Current files in

https://collector.torproject.org/archive/relay-descriptors/bandwidths/ https://collector.torproject.org/recent/relay-descriptors/bandwidths/

lack indication of which bandwidth scanner generated them. (files archived from Tom's collection are attributed)

Collect these files here and abandoned an attempt to fill a gap due to this issue. Ad-hoc logic to bin them may be possible but is not trivial. Can provide attribution by sha256 digest for most of them if the file naming is improved.

original ticket legacy/trac#21378 (moved)