refactor!: change storage API to support new backends (#1)

BREAKING CHANGE: Storage interface has been redesigned.
Old storage implementations need to be updated.

Author: jackye1995

README.md

@@ -271,3 +271,4 @@ Lance is currently used in production by:
 <!-- fix: resolve memory leak in index building -->
 <!-- docs: update API documentation -->
 <!-- feat: add support for filtering in vector queries -->
+<!-- BREAKING: refactor storage API -->