### Description

We now support storing KNN vectors as part of our indexed data.  These vectors should be included in the disk usage API.
server/src/main/java/org/elasticsearch/action/admin/indices/diskusage/IndexDiskUsageAnalyzer.java
private long minPosition = Long.MAX_VALUE;
        private long maxPosition = Long.MIN_VALUE;
        BytesReadTracker createSliceTracker(long offset) {
            return this;
        }
        void trackPositions(long position, int length) {
            minPosition = Math.min(minPosition, position);
            maxPosition = Math.max(maxPosition, position + length - 1);
        }
        void resetBytesRead() {
            minPosition = Long.MAX_VALUE;
            maxPosition = Long.MIN_VALUE;
        }
        long getBytesRead() {
            if (minPosition <= maxPosition) {
                return maxPosition - minPosition + 1;
            } else {
                return 0L;
            }
        }
    }
    private static class CompoundFileBytesReaderTracker extends BytesReadTracker {