Restore Points improvements
Restore Points improvements

Use Restore Points for recompression attempts as well.

Make CRC32 calculations on current ZopfliDeflatePart  offset passed and
use it in filename as well as zopfli[C/R]-[CRC32].lz77rp, this will most
likely make it  ZOPFLI_MASTER_BLOCK_SIZE compatible. In case the feed is
not final, restore point files won't be deleted, so manual deletion is
required.

MrKrzYch00/zopfli,MrKrzYch00/zopfli