Extend ordering_vector_len to 32 bits.

[FDeRubeis]

nss-tlsn/nss/lib/ssl/tlsproof.h

Line 97 in 5730a7a

PRUint16 orderingVectorLen;

[FDeRubeis]

Also, exchange the position in the struct of orderingVectorLen and and SignLen because structs member shorter than 32 bits are padded internally in the struct and this will give problems when memcopying the struct.

[FDeRubeis]

nss-tlsn/nss/lib/ssl/tlsproof.h

Line 62 in 5730a7a

PRUint16 num_proof_nodes;

Also this must be extended to 32 bits and its position exchanged with sig_len