Tag dovetail with cvp.0.4.0

Tag dovetail with cvp.0.4.0

JIRA: DOVETAIL-476

1. docker image used
   yardstick: danube.3.1
   functest: cvp.0.2.0
   bottlenecks: cvp.0.4.0
   testapi: cvp.0.4.0
   dovetail: cvp.0.4.0
2. main changes
   Add docs about vping test cases (test scope and test specification)
   Add 2 vping test cases into proposed_tests
   Bugfix: Build docker image failed because of lacking of packages
   Add resiliency.tc001 into proposed_tests
3. For more information, refer to
   https://wiki.opnfv.org/display/dovetail/Running+history+for+the+dovetail+tool

Change-Id: I5ce6bdc9a1daa957124309c9fadc532f9c7a2b1e
Signed-off-by: xudan <xudan16@huawei.com>