[Snapshots] 1: Introduce partition store snapshotting support #2794

All 46 tests pass in 3m 8s

5 files - 10 5 suites - 10 3m 8s ⏱️ - 17m 51s
46 tests +40 46 ✅ +40 0 💤 ±0 0 ❌ ±0
117 runs +99 117 ✅ +99 0 💤 ±0 0 ❌ ±0

Results for commit f414584. ± Comparison against earlier commit e692969.