Update base for Update on "[devtool] introduce datasink class to etdump"

this diff introduce datasink class, the class for managing the customized debug data storage pipeline.

Detials can be found in https://docs.google.com/document/d/1y_m32mKdj-OgLcLUz9TKhBW3PC3bBDYSBbeAH544EfM/edit?tab=t.0

Differential Revision: [D69583422](https://our.internmc.facebook.com/intern/diff/D69583422/)

[ghstack-poisoned]

Author: Gasoonjia