Create Test Reporting landing page

Create Test Reporting landing page

JIRA: RELENG-165

In this patch, I upload the backend code

usage:
docker run -itd -p 8000:8000 -e SERVER_URL=server_ip:8000 opnfv/reporting:<tag>

note: must point SERVER_URL, it is the api server.

visit landing page:
http://server_ip:8000/reporting/index.html

Change-Id: I10121574e0c4b2733a8084c986d7a2746e7ce2a4
Signed-off-by: chenjiankun <chenjiankun1@huawei.com>