Add option to make the generated SoftAssertions implement AutoCloseable

[StormeHawke]

Would be nice to add an option to make the generated SoftAssertions implement AutoCloseable, like so:

public class SoftAssertions extends org.assertj.core.api.SoftAssertions implements AutoCloseable {
    @Override
    public void close() {
        assertAll();
    }
}

[joel-costigliola]

Good idea. You know yo can change the template to do so in the meantime.

[StormeHawke]

I... did not know that. I'll look into the docs