Static DIR and FILE resource types (#2244)

* Explicit static directive for serving file or dir


Co-authored-by: anbuhckr <36891836+anbuhckr@users.noreply.github.com>
Co-authored-by: anbuhckr <miki.suhendra@gmail.com>

sanic/models/futures.py

@@ -52,6 +52,7 @@ class FutureStatic(NamedTuple):
     host: Optional[str]
     strict_slashes: Optional[bool]
     content_type: Optional[bool]
+    resource_type: Optional[str]
 
 
 class FutureSignal(NamedTuple):