Correcting JP language test vectors

Hello @bip39JP @bip32JP 

1) the passphrase was incorrectly labelled as salt. I was able to reproduce these tests by treating the "salt" as the passphrase and conclude that the passphrase was incorrectly labelled as salt.

2) The mnemonic sentence output in BIP39 needs to be UTF8-NFKD and it is up to the discretion of the GUI designer if they intend to use ideographic space instead of ASCII space. I have fixed the mnemonic sentence to be UTF8-NFKD which is the output expected from the code we are testing.

3) I changed the test data label "phrase" to "mnemonic sentence" so it can be mapped to the BIP39 specification documentation.

4) I removed the BIP32 root seed, BIP32 output has no place in BIP39 test data. A developer designing tests for BIP39 should be focussed only on BIP39 and should not even be considering outputting BIP32 root seed until they start designing BIP32 functionality. BIP32 root seed belongs in the BIP32 test data ONLY.