glb chunk lenght unaligned (4-byte boundaries)

[madjin]

compared exports + VRM validator from main and refactor branch, and there were not many differences between them (exported with mtoon atlas for both) except for this error appearing in refactor branch:

Anata 214:

I noticed this error in Anata 32 as well

12a13,18
"code": "GLB_CHUNK_LENGTH_UNALIGNED",
"message": "Length of 0x4e4f534a chunk is not aligned to 4-byte boundaries.",
"severity": 0,
"offset": 12
},

exported VRMs: compare.zip

Originally posted by @madjin in #80 (comment)

[madjin]

e4ddf29
maybe look into here