Record test case names when run a task using API

Record test case names when run a task using API

JIRA: YARDSTICK-509

Currently we use influxdb as database and will not record test case name
when run a test case.
So if we must offer test case name if we want to get result from API.

Regarding future requirement, I create sqlite database and alchemy orm
framework. And record test case name when run a test case. So we needn't
offer test case any more when call for get result API.

Change-Id: I7d7dc24543a33918546267591f7bdcd0742928cb
Signed-off-by: chenjiankun <chenjiankun1@huawei.com>