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

All 45 tests pass in 2m 30s

5 files - 10 5 suites - 10 2m 30s ⏱️ - 18m 29s
45 tests +39 45 ✅ +39 0 💤 ±0 0 ❌ ±0
114 runs +96 114 ✅ +96 0 💤 ±0 0 ❌ ±0

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