Resolve "Add Tango wrapper"

Closes #1 (closed)

Standalone server

blisswriter run redis://localhost:10003 --log-level DEBUG

Register Tango device

blisswriter tango register redis://localhost:10003 myserver writer1 bliss writer device1 --tango-host localhost:10000 --log-level DEBUG

Tango server

blisswriter tango run myserver writer1 --tango-host localhost:10000 --log-level DEBUG

I used "run" instead of "start" because it is blocking.