feat: implement and calculate the current key period using pallas #126

All 911 tests pass in 8m 41s

3 files ±0 42 suites ±0 8m 41s ⏱️ +8s
911 tests ±0 911 ✅ ±0 0 💤 ±0 0 ❌ ±0
1 000 runs ±0 1 000 ✅ ±0 0 💤 ±0 0 ❌ ±0

Results for commit 1d6648c. ± Comparison against earlier commit 5284e56.