Action generator that accepts http method and path`

Nobody has claimed this yet.

The current generator only allows for RESTful actions. Providing something else will throw an error:

```
❯ lucky gen.action.browser Members::Dashboard
Could not infer route for Members::Dashboard

Got:
Members::Dashboard (missing a known resourceful action)

Expected something like:
Users::Index # Index, Show, New, Create, Edit, Update, or Delete
```

We should add an option to specify the HTTP method and path. If you provide a RESTful action, then it will still infer.

```
lucky gen.action.browser Messages::Archive get /message/:message_id/archive
```

would generate `Messages::Archive` class with `get "/messages/:message_id/archive"`. When no path and HTTP method are provided, it would still show the error when it can't infer.

Start with the implementation behind `lucky gen.action.browser`, especially how it parses the action argument and infers RESTful routes. Check how the generator reports an unknown action, then support the optional HTTP method and path shown in the issue while preserving inference and the existing error when they are absent. Done means the example generates the requested class and route, while RESTful actions continue to infer routes.

Written by the indexing model from the issue text.