Memory: Handle RasterizerCachedMemory and RasterizerCachedSpecial page types in the memory block manipulation functions.

This allows Fire Emblem to boot again.

Format information is currently only implemented for the ExtSaveData, SharedExtSaveData and SaveData archives, the information is stored in a file alongside the root folder of the archive.

These operations are limited by the open flags specified while opening the file.

Buffer lengths should be size_t, and file offsets should be u64.

Organize the ExtSaveData folders as they are stored in the console.

Also fixed a bug with CreateExtSaveData that made it unable to create ExtSaveData archives in the SDMC directory.

This coincidentally fixes an issue about the PTM service failing to create its SharedExtSaveData archive due to the FS service not being initialized by the time the creating code runs.

Ideally I'd like to move each process to its own folder, and have a single file per process that registers the service classes, which would be in their own files inside that folder. Then each service class would just call functions from the process to complete the commands.

Ported to the new factory pattern we have for archives.

Involves making asserts use printf instead of the log functions (log functions are asynchronous and, as such, the log won't be printed in time)
As such, the log type argument was removed (printf obviously can't use it, and it's made obsolete by the file and line printing)

Also removed some GEKKO cruft.

It was only being used in two places, where it was replaced by a local
constant.

Implemented FSUser::CreateExtSaveData

It now refers to me as the PoC

Each archive now takes a mount point of either NAND or SDMC, and builds its own directory structure there, trying to simulate an HLE-friendly hardware layout

This is to better represent the hardware layout, they are still aren't quite accurate, but this better and will help a bit when implementing the other archives like NAND-RO and NAND-RW