[SUREFIRE-1895] config maven to mark “running test” as ERROR when some tests are skipped

**[Jan](https://issues.apache.org/jira/secure/ViewProfile.jspa?name=kowalski)** opened **[SUREFIRE-1895](https://issues.apache.org/jira/browse/SUREFIRE-1895?redirect=false)** and commented

As a tester/developer I would like to have a flag in maven to set final verdict of running tests to ERROR when some tests has been skipped.

Flag name proposal:

failIfAnyTestSkipped

Example using:

mvn test -failIfAnyTestSkipped=false

```
[WARNING] Tests run: 1423, Failures: 0, Errors: 0, **Skipped: 3,** Time elapsed: 149.449 s - in TestSuite
[INFO]
[INFO] Results:
[INFO]
[WARNING] Tests run: 1423, Failures: 0, Errors: 0, Skipped: 3
[INFO]
[INFO] ------------------------------------------------------------------------
[INFO] **BUILD SUCCESS**
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 02:55 min
[INFO] Finished at: 2021-03-10T13:12:35+01:00
[INFO] ------------------------------------------------------------------------
```

mvn test -failIfAnyTestSkipped=true

```
[WARNING] Tests run: 1423, Failures: 0, Errors: 0, **Skipped: 3,** Time elapsed: 149.449 s - in TestSuite
[INFO]
[INFO] Results:
[INFO]
[WARNING] Tests run: 1423, Failures: 0, Errors: 0, Skipped: 3
[INFO]
[INFO] ------------------------------------------------------------------------
[INFO] **BUILD ERROR**
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 02:55 min
[INFO] Finished at: 2021-03-10T13:12:35+01:00
[INFO] ------------------------------------------------------------------------
```

---
No further details from [SUREFIRE-1895](https://issues.apache.org/jira/browse/SUREFIRE-1895?redirect=false)

The issue names the `mvn test` command and SUREFIRE-1895; start by reading that JIRA record and locating the Surefire Maven-plugin entry point that handles skipped-test results. Done means the proposed flag is accepted with both values and the build result matches the requested behavior.

Written by the indexing model from the issue text.