refactor: nettests is now an internal package (#165)

I'm moving everything into internal packages since this ain't a library.

While there, remove typo that was causing a build breakage.

internal/cli/run/run.go

@@ -10,7 +10,7 @@ import (
 	"github.com/ooni/probe-cli/internal/cli/onboard"
 	"github.com/ooni/probe-cli/internal/cli/root"
 	"github.com/ooni/probe-cli/internal/database"
-	"github.com/ooni/probe-cli/nettests"
+	"github.com/ooni/probe-cli/internal/nettests"
 )
 
 func runNettestGroup(tg string, ctx *ooni.Context, network *database.Network) error {

internal/log/handlers/cli/results.go

@@ -84,7 +84,6 @@ func makeSummary(name string, totalCount uint64, anomalyCount uint64, ss string)
 
 func logResultItem(w io.Writer, f log.Fields) error {
 	colWidth := 24
-Try running
 	rID := f.Get("id").(int64)
 	name := f.Get("name").(string)
 	isDone := f.Get("is_done").(bool)

internal/nettests/nettests_test.go

@@ -16,7 +16,7 @@ func newTestingContext(t *testing.T) *ooni.Context {
 		t.Fatal(err)
 	}
 	configPath := path.Join(homePath, "config.json")
-	testingConfig := path.Join("..", "testdata", "testing-config.json")
+	testingConfig := path.Join("..", "..", "testdata", "testing-config.json")
 	shutil.Copy(testingConfig, configPath, false)
 	ctx := ooni.NewContext(configPath, homePath)
 	swName := "ooniprobe-cli-tests"