Update snapshot2 fuzzing

[XuJiandong]

• Let some branches returned early in case of errors.
• Make a lot of cases possible from ELF data.
• Add more logs

[XuJiandong]

crash.tar.gz
This is one of crashes.

Running: artifacts/snapshot2/crash-2b169de52511868e7c2553f22bc0e22cca24aeba
mem1[0..16] = [0, 2, 3, 4, 0, 1, 2, 3, 4, 0, 1, 2, 3, 4, 0, 1, 2, 3, 4, 0, 1, 2, 3, 4, 0, 1, 2, 3, 4, 0, 1, 2]
mem2[0..16] = [0, 1, 2, 3, 4, 0, 1, 2, 3, 4, 0, 1, 2, 3, 4, 0, 1, 2, 3, 4, 0, 1, 2, 3, 4, 0, 1, 2, 3, 4, 0, 1]
program length = 372224
content length = 52928
LoadingAction: addr = 0, size = 0, source = 256..33024, offset_from_addr = 0
LoadingAction: addr = 0, size = 0, source = 0..256, offset_from_addr = 0
StoreBytesAction { addr: 0, offset: 0, length: 32768 }
StoreBytesAction { addr: 1, offset: 257, length: 46515456 }
thread 'snapshot2' panicked at fuzz_targets/snapshot2.rs:181:13:
The memory restored by operation resume is not same as snapshot operation at page 0