
Ports v2 fping extension and adapts it to the v2.1/v3 API framework. API behaviour is identical. - unittest code modified to share testing with both v2/v2.1 - Adds expected error decorators for API methods Partially implements blueprint v2-on-v3-api Change-Id: I8dc4ede46826bf6062097a3b4ba6be9a09a1bd12