The flake8 hook for pre-commit installs its own flake8 which is
not what hacking is pinned to. This results in a bunch of errors.
By doing a local hook we can cause these to be the same.
There are flake8 exclusions in tox.ini that need to be used
in pre-commit. Also we should exclude svg files from the whitespace
modifications, because who cares.
Once those are fixed, running pre-commit -a fixes some whitespace
issues. While the normal use isn't to run -a - if someone does make
a patch that touches any of these they'll get erroneous unrelated
errors compared to their lower work - so fix all of the existing
issues, which are mostly space-at-end-of-line issues it seems.
Change-Id: I78e753492e99c03b30a0a691db3bd75ee3d289c9
e7cc5efd20