Unittests for satori-localhost implementation

Change-Id: Ica67b3541875e3fdd6ca99ea34cddc105bdeec12
Implements: blueprint satori-localhost
ssh tunnels, windows support, simplify ssh proxying

Change-Id: Ib8646519fb9776db6667206269ae208c63a86a77
wrap underlying client methods with RemoteShell Methods

Change-Id: I28942ec52f63be8a13a0afa996af02d293feb598
use RemoteClient methods and add windows commands

Change-Id: I0bbcb4d81de657b4d2efad23751c3337b984e1ae