Rename fixtures directory to job_fixtures to prepare for adding view_fixtures directory in the following commits. Change-Id: Ic20997cae020b542ddc22bf444fa6b92fbcae064
This enables the use of Jinja2 templating within strings in the template YAML files. Change-Id: I2e912d2f874c5f2428e1aed4af94897aee8d4a72