fix to the ATN deserialiser issue on big endian architecture

[vaibhavaingankar09]

In ReadUUID byte d[] to be reversed only in case of little endian architecture. In the case of big endian Array.Reverse(d) is not required since the bytes are stored in the order most significant to least significant.

[ericvergnaud]

Out of curiosity, which system is exposing the problematic behaviour?
I'm a bit surprised that this would be the only issue with the deserialiser.

[vaibhavaingankar09]

ATN deserialiser issue arises on s390x systems, with UUID 59627784-3be5-417a-8960-28a73181ebb9 whereas the expected UUID is 59627784-3be5-417a-b9eb-8131a7286089. If we notice the highlighted section of UUID is the representation of 8 bit byte array which is reversed.

[ericvergnaud]

Thanks
To your knowledge, does this only happen with the c# runtime?

[vaibhavaingankar09]

Yes, it is specific to c# runtime.

[ericvergnaud]

Thanks
@parrt blessed