Design a way to shard large revocation bitmaps

## Description
Design a way to shard large (that exceed the max tx argument size) revocation bitmaps.

No files, tests, or entry points are identified. First understand how revocation bitmaps and transaction argument limits are represented in this repository, then develop a sharding design that defines storage, lookup, updates, and compatibility. Done means the design addresses bitmaps exceeding the maximum transaction argument size and is specific enough to implement.

Written by the indexing model from the issue text.