Merge pspdecrypt and psardecrypt, with additional arguments

[artart78]

Here's my proposal:

• pspdecrypt could take PBPs, PSARs and PSPs as an input
• --outfile/-o specifies the output decrypted PSP
• --outdir/-O specifies the output dir for PSAR
• --extract-only will only extract and not decrypt the PSAR's contents
• --psar-only and --psp-only, if given a PBP, will select what to extract/decrypt

Then, independently (using only --outdir/-O), --ipl-decrypt and a facultative --preipl argument.

Also, possibly, --verbose (at least for enabling the IPL decryption output).

It should cover #5 and #6

[John-K]

This sounds good to me. It would be nice to have it do something sane if you just passed it a file without any arguments too.

[WorldGenesis]

This sounds good to me. It would be nice to have it do something sane if you just passed it a file without any arguments too.

It might be nice to have it show the PSAR/table version, and if its a FW update, show the update version too when run without arguments :P

[John-K]

That's a cool idea, maybe a --info as well?