Add no-invalid-fetch-options rule

[fisker]

Fixes #1989

[silverwind]

Should add OPTIONS, TRACE and CONNECT:

Request has body: No

[fisker]

These doesn't thows

fetch('/', {method: 'OPTIONS', body: 'foo'})
fetch('/', {method: 'TRACE', body: 'foo'})
fetch('/', {method: 'CONNECT', body: 'foo'})

The spec only forbids GET and HEAD.

[silverwind]

These doesn't thows

fetch('/', {method: 'OPTIONS', body: 'foo'})
fetch('/', {method: 'TRACE', body: 'foo'})
fetch('/', {method: 'CONNECT', body: 'foo'})

The spec only forbids GET and HEAD.

Ok, then MDN is just inaccurate.

[GauBen]

Thanks @fisker!