### Summary

Add preflight checks to `lib/ansible/cli/__init__.py` for both the local locale and the fsencoding to ensure they are `UTF-8`, and abort when they are not.

We implicitly require this now, but have never strictly enforced it. Due to using `pathlib` in more places, to avoid undefined behavior in our codebase, due to the utf-8 expectation, check this early and fail fast.

### Issue Type

Feature Idea

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

We may also need to evaluate the `C` locale.  I know some users are running ansible from devices with only the `C` locale.

### Code of Conduct

- [X] I agree to follow the Ansible Code of Conduct
if u": [" in msg:
            msg = msg.replace(u"[", u"")
            if msg.endswith(u"]"):
                msg = msg[:-1]
        runcmd = [self.b_cowsay, b"-W", b"60"]
        if self.noncow:
            thecow = self.noncow
            if thecow == 'random':
                thecow = random.choice(list(self.cows_available))
            runcmd.append(b'-f')
            runcmd.append(to_bytes(thecow))
        runcmd.append(to_bytes(msg))
        cmd = subprocess.Popen(runcmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
        (out, err) = cmd.communicate()
        self.display(u"%s\n" % to_text(out), color=color)
    def error(self, msg, wrap_text=True):
        if wrap_text:
            new_msg = u"\n[ERROR]: %s" % msg
            wrapped = textwrap.wrap(new_msg, self.columns)
            new_msg = u"\n".join(wrapped) + u"\n"
        else:
            new_msg = u"ERROR! %s" % msg
        if new_msg not in self._errors:
            self.display(new_msg, color=C.COLOR_ERROR, stderr=True)
            self._errors[new_msg] = 1
    @staticmethod
    def prompt(msg, private=False):