Method file should have its endpoint path as folder prefix

[fsmaia]

As in file inferring when neither file or data attributes are present, it would be nice to have the endpoint path as folder prefix when a file is given, so it wouldn't allow the data folder to be unorganized.

Example:

{
    path: '/menu/categories',
    methods: [
      {
        type: 'get',
        overrides: [
          {
            name: 'Default',
          },
          {
            name: 'Duplicated',
            file: 'duplicated.json',
            // would infer the file 'data/menu/categories/duplicated.json', or maybe 'data/menu/categories-duplicated.json'
          },
        ],
      },
      {
        type: 'post',
        file: 'created.json',
        // would infer the file 'data/menu/categories/created.json', or maybe 'data/menu/categories-created.json'
      },
    ],
  },

Another interesting addition would to have the HTTP method in the inferred file, e.g.:

{
    path: '/menu/categories',
    methods: [
      {
        type: 'post',
        // would infer the file 'data/menu/categories/post.json'
      },
    ],
  },

To accomplish it, we could just join the inferred path with the given file attribute, it would easy IMHO :)