Enable cmd tool tests

[domi4484]

Fix #138

[3nids]

it's strange that the service is not working

[domi4484]

it's strange that the service is not working

I think the interlis tools are not able to use it

[3nids]

let's see in #157

[domi4484]

If with service file doesn't work we should remove the --pgservice option from the cmd line tool. Or raise a not implemented error.
In model baker we had to implement something to parse the pg service and pass the right options to the ili tools. And here we don't use (that part) of MB.