This commit add support for state selector to the list introspection.
* ``GET /v1/introspection?state=[starting, waiting, processing,
finished, error, reapplying,
enrolling]``
Story: 1625183
Task: 11350
Change-Id: I2c5222110487a08a4e7b1efbcbc5dc3d552fae3e
Add initial API reference, which covers all inspector endpoits.
The conf.py and the tox environment are stolen from ironic.
Co-Authored-By: Kaifeng Wang <kaifeng.w@gmail.com>
Change-Id: I5009e8708dcad8ab25380f7bf574125d6e758ef5