GHSA-6P3C-V8VC-C244 The `total_size` function for partial read the length of any `FixVec` is incorrect in molecule.

Anyone who uses totalsize.. function to partial read the length of any FixVec will get an incorrect result, due to an incorrect implementation. This has been resolved in the 0.7.2 release...

RUSTSEC-2021-0103 Partial read is incorrect in molecule

Anyone who uses totalsize.. function to partial read the length of any FixVec will get an incorrect result, due to an incorrect implementation. This has been resolved in the 0.7.2 release...