VTL: VppTestResult: Must implement empty constructor.
VTL: VppTestResult: Must implement empty constructor.

Subclasses of (unittest.TestResult|unittest.TextTestResult) must implement an empty constructor.

The standard python library unittests depend on the empty constructor.

Change-Id: I6d1bd2e7d6996d85a9da66cb7d40af0ed3c30e2b
Signed-off-by: Paul Vinciguerra <b92f79aabe4c9c18085c7347110a52af0898a0ef@vinciconsulting.com>

chrisy/vpp,vpp-dev/vpp,FDio/vpp,vpp-dev/vpp,vpp-dev/vpp,FDio/vpp,chrisy/vpp,FDio/vpp,chrisy/vpp,vpp-dev/vpp,FDio/vpp,vpp-dev/vpp,chrisy/vpp,vpp-dev/vpp,vpp-dev/vpp,FDio/vpp,chrisy/vpp,FDio/vpp,FDio/vpp,chrisy/vpp,chrisy/vpp,chrisy/vpp,FDio/vpp