Support sending body for DELETE

[simplesmiler]

Reasoning:

• Browser fetch does not forbid sending body for DELETE, but does forbid it for GET/HEAD.
  Example: https://i.imgur.com/UUIb7k3.png (tested in Chrome)
• Axios does support sending body for DELETE, but not for GET/HEAD.
  Reference: Support delete body axios/axios#897 (comment)

It's unclear if interface should be taxios.delete(url, body, params) or taxios.delete(url, { ...params, body }), or something else.

[crutch12]

Vote for taxios.delete(url, { ...params, data })