0607226fc4
Adopt Ironic's own context in Ironic and add tests. Refactor ensure_thread_contain_context to Ironic's own context class, this will be more generical and not bind to TaskManager anymore. Explicitly call ensure_thread_contain_context() in Inspector driver for inspect hardware action. Change-Id: Ic2bb16a2deb02054b4fca795d431c965e30a246f Closes-Bug: #1560264