Support Ps4 Files

[sithlord48]

When Finished this will Resolve #5

Currently

• General PS4 info in FF7SaveInfo
  • New types PS4 and PS4BIN
• Debug info is shown when trying to open a save##.ff7 from a PS4.
• Attempts to locate the the Bin and extract the key and iv used.

TODO

• Attempt to decrypt and load the ps4 using the key / iv pair.