Function encode_delta_snapshot 

pub fn encode_delta_snapshot(
    schema: &Schema,
    tick: SnapshotTick,
    baseline_tick: SnapshotTick,
    baseline: &Snapshot,
    current: &Snapshot,
    limits: &CodecLimits,
    out: &mut [u8],
) -> CodecResult<usize>

Encodes a delta snapshot into the provided output buffer.

Baseline and current snapshots must have entities sorted by EntityId.