### Summary

Add preflight checks to `lib/ansible/cli/__init__.py` to ensure that `stdin`, `stdout`, and `stderr` are blocking, and not non-blocking.  The `Display` class cannot handle the non-blocking case, and it's been decided to not attempt work arounds to allow this.

We've experienced this happening in subprocesses where something like `ssh` sets these FDs as non-blocking and doesn't restore them to blocking, causing tracebacks.

### Issue Type

Feature Idea

### Component Name
```
lib/ansible/cli/__init__.py
```
### Additional Information

<!--- Paste example playbooks or commands between quotes below -->
```yaml (paste below)

```


### Code of Conduct

- [X] I agree to follow the Ansible Code of Conduct
''' find reasonable way to display text '''
        
        if not sys.stdout.isatty():
            display.display(text, screen_only=True)
        elif 'PAGER' in os.environ:
            if sys.platform == 'win32':
                display.display(text, screen_only=True)
            else:
                CLI.pager_pipe(text, os.environ['PAGER'])
        else:
            p = subprocess.Popen('less --version', shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
            p.communicate()
            if p.returncode == 0:
                CLI.pager_pipe(text, 'less')
            else:
                display.display(text, screen_only=True)
    @staticmethod
    def pager_pipe(text, cmd):
        ''' pipe text through a pager '''
        if 'LESS' not in os.environ:
            os.environ['LESS'] = CLI.LESS_OPTS
        try:
            cmd = subprocess.Popen(cmd, shell=True, stdin=subprocess.PIPE, stdout=sys.stdout)
            cmd.communicate(input=to_bytes(text))
        except IOError:
            pass
        except KeyboardInterrupt:
            pass
    @staticmethod
    def _play_prereqs():