[Request] Add option not to unpack PSP eboots

[lusid1]

This would treat PSP eboots as PSX eboots are treated now and extract into the same folder structure.. i.e. ../PSP/GAME/{ID}

With currently available tools its not necessary to unpack all the way to ISO. eboots can run in their native format, retain their original compression, along with any associated document.dat.