$resource: allow body in HTTP delete.

[jpprins1]

In resource.js:
520: var hasBody = /^(POST|PUT|PATCH)$/i.test(action.method);

Maybe also add DELETE?
($http supports delete with body)

Note: As far as I could find it looks like it's unclear (RFC) if body should be accepted for delete, but I needed this for an external API.

[pkozlowski-opensource]

Duplicate of #8567 - currently $http does not allow DELETE requests with body (see

angular.js/src/ng/http.js

Line 1113 in c3a654b

createShortMethods('get', 'delete', 'head', 'jsonp');

) so eventually changing this would be a prerequisite.