### Summary

Add type hints to `ansible.utils.display::Display`

### Issue Type

Feature Idea

### Component Name

lib/ansible/utils/display.py
display.debug(u"stdout chunk (state=%s):\n>>>%s<<<\n" % (state, to_text(b_chunk)))
                    elif key.fileobj == p.stderr:
                        b_chunk = p.stderr.read()
                        if b_chunk == b'':
                            
                            selector.unregister(p.stderr)
                        b_tmp_stderr += b_chunk
                        display.debug("stderr chunk (state=%s):\n>>>%s<<<\n" % (state, to_text(b_chunk)))
                
                
                
                if state < states.index('ready_to_send'):
                    if b_tmp_stdout:
                        b_output, b_unprocessed = self._examine_output('stdout', states[state], b_tmp_stdout, sudoable)
                        b_stdout += b_output
                        b_tmp_stdout = b_unprocessed
                    if b_tmp_stderr:
                        b_output, b_unprocessed = self._examine_output('stderr', states[state], b_tmp_stderr, sudoable)
                        b_stderr += b_output
                        b_tmp_stderr = b_unprocessed
                else:
                    b_stdout += b_tmp_stdout
                    b_stderr += b_tmp_stderr
                    b_tmp_stdout = b_tmp_stderr = b''
                
                
                
                if states[state] == 'awaiting_prompt':
                    if self._flags['become_prompt']:
                        display.debug(u'Sending become_password in response to prompt')