API Request and Response Information added to the
Code Repository. Modified tox and Zuul to build
the doc html pages.
Added docs for the following APIs:
1. /metrics
2. /metrics/device/{device_name}
3. /metrics/pci-addr/{pci_addr}
Story: 2010918
Task: 50889
Change-Id: I720cbabc37b07314ef9fa74f0d39942373e6aec8
Signed-off-by: Aman Pandae <AmanPandae.Mothukuri@windriver.com>
Signed-off-by: AbhishekJ <abhishek.jaiswal@windriver.com>
9f4bbb93d4