new repo request

[Patrick Venture]

Brad,

Please create a repo: ipmi-blob-tool (or) phosphor-blob-tool (at your
discretion).

I'm going to write up the blob tool as a library and then a small
utility, and then use that in phosphor-ipmi-flash so that we can have
other blob tools more easily.  There are a few other use-cases we've
run into, and the core blob code for the tool currently lives in
phosphor-ipmi-flash, which is sub-ideal.

Patrick