feat: tlsping and tcpping using step-by-step (#815)

## Checklist

- [x] I have read the [contribution guidelines](https://github.com/ooni/probe-cli/blob/master/CONTRIBUTING.md)
- [x] reference issue for this pull request: https://github.com/ooni/probe/issues/2158
- [x] if you changed anything related how experiments work and you need to reflect these changes in the ooni/spec repository, please link to the related ooni/spec pull request: https://github.com/ooni/spec/pull/250

## Description

This diff refactors the codebase to reimplement tlsping and tcpping
to use the step-by-step measurements style.

See docs/design/dd-003-step-by-step.md for more information on the
step-by-step measurement style.

internal/netxlite/quirks_test.go

@@ -34,13 +34,13 @@ func TestQuirkReduceErrors(t *testing.T) {
 
 	t.Run("multiple errors with meaningful ones", func(t *testing.T) {
 		err1 := errors.New("mocked error #1")
-		err2 := newErrWrapper(
-			classifyGenericError,
+		err2 := NewErrWrapper(
+			ClassifyGenericError,
 			CloseOperation,
 			errors.New("antani"),
 		)
-		err3 := newErrWrapper(
-			classifyGenericError,
+		err3 := NewErrWrapper(
+			ClassifyGenericError,
 			CloseOperation,
 			ECONNREFUSED,
 		)