Added 'scope' property to IntrospectionRule and logic to check if a node
falls in the same scope.This allows introspection rules to be applied on
selected nodes instead of every one of them.
Story: 2006995
Task: 37763
Change-Id: I77034f032ea0ec16886afdd928546eb801f7a90a
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