### Summary

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

### Issue Type

Feature Idea

### Component Name

lib/ansible/utils/display.py
default: inventory_hostname
          type: string
          vars:
               - name: inventory_hostname
               - name: ansible_host
               - name: ansible_ssh_host
               - name: delegated_vars['ansible_host']
               - name: delegated_vars['ansible_ssh_host']
      host_key_checking:
          description: Determines if SSH should check host keys.
          default: True
          type: boolean
          ini:
              - section: defaults
                key: 'host_key_checking'
              - section: ssh_connection
                key: 'host_key_checking'
                version_added: '2.5'
          env:
              - name: ANSIBLE_HOST_KEY_CHECKING
              - name: ANSIBLE_SSH_HOST_KEY_CHECKING
                version_added: '2.5'
          vars:
              - name: ansible_host_key_checking
                version_added: '2.5'
              - name: ansible_ssh_host_key_checking
                version_added: '2.5'
      password:
          description: Authentication password for the O(remote_user). Can be supplied as CLI option.
          type: string