[TieredStorage] In-memory struct for writing OwnersBlock

[yhchiang-sol]

Problem

To write the owners-block, it requires an in-memory struct that maintains a set of unique owner addresses while providing a look-up function to obtain the OwnerOffset with the specified owner address.

Summary of Changes

This PR adds OwnersTable, the in-memory struct that maintains a set of unique owner addresses while providing a look-up function to obtain the OwnerOffset with the specified owner address.

Test Plan

A new unit-test is added.

[codecov[bot]]

Codecov Report

Attention: 32 lines in your changes are missing coverage. Please review.

Comparison is base (8ff511e) 81.6% compared to head (8704abe) 81.6%. Report is 9 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff            @@
##           master   #34853     +/-   ##
=========================================
- Coverage    81.6%    81.6%   -0.1%     
=========================================
  Files         827      827             
  Lines      223884   223911     +27     
=========================================
- Hits       182841   182836      -5     
- Misses      41043    41075     +32     

[yhchiang-sol]

Same CI error here. Will rebase once the PR has been fully reviewed.

+ cargo audit --ignore RUSTSEC-2020-0071 --ignore RUSTSEC-2023-0001 --ignore RUSTSEC-2022-0093
--
  | Fetching advisory database from `https://github.com/RustSec/advisory-db.git`
  | Loaded 592 security advisories (from /usr/local/cargo/advisory-db)
  | Updating crates.io index
  | Scanning Cargo.lock for vulnerabilities (799 crate dependencies)
  | Crate:     shlex
  | Version:   1.1.0
  | Title:     Multiple issues involving quote API
  | Date:      2024-01-21
  | ID:        RUSTSEC-2024-0006
  | URL:       https://rustsec.org/advisories/RUSTSEC-2024-0006
  | Solution:  Upgrade to >=1.3.0
  | Dependency tree:
  | shlex 1.1.0

[yhchiang-sol]

Rebased