GODT-1166: Reduce the number of auth for live test

- Changed: Do not reauth controller clients.
- Changed: Verbosisty is set only once before run
- Changed: AddUser takes TestAccount as argument
- Added: Setup/clean up before/after test run
- Added: Access to the current refresh token from pmapi.Client interface.
- Added: Context function to add test a user to bridge without login, just call users.FinishLogin.
- Added: PMAPIController.GetAuthClient returns authenticated client for username.
- Added: Persistent clients does not loggout after every scenario.
- Changed: Disabled no-internet tests.

test/fakeapi/controller.go

@@ -24,6 +24,8 @@ import (
 	"github.com/sirupsen/logrus"
 )
 
+// Controller implements dummy PMAPIController interface without actual
+// endpoint.
 type Controller struct {
 	// Internal states.
 	lock               *sync.RWMutex