This change adds a basic bandit config for Swift. It can be invoked
by running the tox environment for bandit;
tox -e bandit
This is an initial step for using bandit with Swift
and it should be revisited to improve the testing as more is learned
about the specific needs of the Swift code base.As per now some tests
are excluded as they were used on purpose.
https://wiki.openstack.org/wiki/Security/Projects/Bandit
Implements: blueprint swift-bandit
Change-Id: I621be9a68ae9311f3a6eadd1636b05e646260cf2