Feat: add example crate for incremental Cardano database #8432

All 1 699 tests pass in 10m 39s

3 files ±0 52 suites ±0 10m 39s ⏱️ -5s
1 699 tests ±0 1 699 ✅ ±0 0 💤 ±0 0 ❌ ±0
2 089 runs ±0 2 089 ✅ ±0 0 💤 ±0 0 ❌ ±0

Results for commit 9915ab7. ± Comparison against earlier commit eff5d76.