slotToMilliseconds function
convert slot to unix time in milliseconds
Implementation
int slotToMilliseconds({int slot = 0}) =>
min(firstSlotOfEpoch208, slot) * millisecondsPerSlot0_207 +
max(0, slot - firstSlotOfEpoch208) * millisecondsPerSlotGt207 +
epoch0Slot0UtcMs;