refactor: make all() take filter and sort options

refactor: return unload item entries from all()/find()

README.md

@@ -168,18 +168,3 @@ SQL against data still stored on disk in a nicely human browsable format.
  | FSDB_LOG_EVENTS             | set to true to log the events system            |
 
 ## TODO
-
- - [ ] make all()/find() return something like
-
-```
-{
-    file_info,
-    entry: {
-        private data = undefined;
-        load() => {
-            data = data ?? await Deno.readTextFile(this.file_info.path);
-            return data;
-        }
-    }
-}
-```