Add test for unicode attributes in CSRs
Add test for unicode attributes in CSRs

This creates a CSR, converts it to bytes, and then loads it again to ensure
that the unicode strings are parsed properly.

kimvais/cryptography,Hasimir/cryptography,Hasimir/cryptography,kimvais/cryptography,kimvais/cryptography,Ayrx/cryptography,Ayrx/cryptography,Ayrx/cryptography,Hasimir/cryptography,kimvais/cryptography,Hasimir/cryptography,Ayrx/cryptography