This patch aims at support microversion in Cyborg API.
The work items is the following:
1. remove old api_version_request.py to avoid the redundancy.
2. add a header in every API request and support to parse it and
route to the correct API method.
3. depracate v1 API.
4. add related UT.
For testing:
CTYPE="Content-Type: application/json"
AUTH="X-Auth-Token: $(openstack token issue -c id -f value)"
curl -s -H "$CTYPE" -H "$AUTH" -H "OpenStack-API-Version: accelerator
2.0" http://localhost/accelerator/devices
This will execute sucessfully because 2.0 microversion is supported.
curl -s -H "$CTYPE" -H "$AUTH" -H "OpenStack-API-Version: accelerator
latest" http://localhost/accelerator/devices
This will execute sucessfully because "latest" will be parsed to 2.0.
curl -s -H "$CTYPE" -H "$AUTH" -H "OpenStack-API-Version: accelerator
2.99" http://localhost/accelerator/devices
This will failed because we don't support 2.99 microversion.
Change-Id: Id9c34dc134d59b2332cefbcae5bbd7e6632e970d