The directory layout is partially based on the C++ namespaces we're currently using.
Other changes include:
* devoptab: move directory into "core".
* fatfs: move directory into "core".
* GameCardTab: move portions of logic from PopulateList() into their own methods.
* GameCardTab: use a macro to generate the properties table.
* GameCardTab: use a macro to add ListItem elements.
* GameCardTab: update AddApplicationMetadataItems() method to also display the number of DLCs available in the inserted gamecard for each application whenever possible.
* Makefile: remove all extra entries from the INCLUDES variable.
* nxdt_includes: move HOS version structs into their own header file.
* tasks: move code for each individual task into its own file(s).
* title: update titleGetGameCardApplicationMetadataEntries() to also count the number of DLCs available in the inserted gamecard for any given base application.
* title: reorder gamecard application metadata entries by name before returning the buffer in titleGetGameCardApplicationMetadataEntries().
* aes: add aes128EcbCrypt() as a one-shot function to perform AES-128-ECB crypto. The rest of the codebase now calls this function whenever suitable.
* fs_ext: add const keyword to IPC input structs wherever suitable.
* key_sources: add hardcoded master key vectors (prod, dev); master KEK sources (Erista, Mariko); master key source; ticket common key source; SMC key type sources; SMC seal key masks; AES key generation source; NCA header KEK source; NCA header key source and NCA KAEK sources. Also fixed the hardcoded gamecard CardInfo key source for dev units (it was previously generated using retail keydata, my bad).
* keys: remove keysGetNcaMainSignatureModulus(); remove keysDecryptNcaKeyAreaEntry(); repurpose keyset struct to only hold keys that can actually be used for the current hardware type; remove KeysGameCardKeyset; remove keysIsXXModulusYYMandatory() helpers; remove keysRetrieveKeysFromProgramMemory(); remove keysDeriveSealedNcaKeyAreaEncryptionKeys(); add keysDeriveMasterKeys() and keysDerivePerGenerationKeys(); rename keysDeriveGameCardKeys() -> keysDeriveGcCardInfoKey(); add small reimplementations of GenerateAesKek, LoadAesKey and GenerateAesKey; add keysLoadAesKeyFromAesKek() and keysGenerateAesKeyFromAesKek() wrappers. Furthermore, master key derivation is now carried out manually using hardcoded key sources and the last known master key, which is loaded from the Lockpick_RCM keys file -- if the last known master key is unavailable, the key derivation algorithm will then fallback to TSEC root key / Mariko KEK based key derivation, depending on the hardware type.
* nca: add hardcoded NCA man signature moduli (prod, dev); merge ncaDecryptKeyArea() and ncaEncryptKeyArea() into ncaKeyAreaCrypt().
* nxdt_utils: add utilsIsMarikoUnit(); remove _utilsAppletModeCheck(); rename utilsAppletModeCheck() -> utilsIsAppletMode().
* services: remove spl:mig dependency (yay).
* smc: add SmcKeyType enum; add SmcSealKey enum; add SmcGenerateAesKekOption struct; add smcPrepareGenerateAesKekOption().
* Made ncaGenerateEncryptedFsSectionBlock() entirely private. There's no point in keeping it public.
* Moved NCA FS section context initialization into its own function, ncaInitializeFsSectionContext().
* Hash data boundaries are now checked while initializing each NCA FS section context, using ncaFsSectionValidateHashDataBoundaries(). Both ncaValidateHierarchicalSha256Offsets() and ncaValidateHierarchicalIntegrityOffsets() have been removed.
* Improved hash region access detection in _ncaReadFsSection() by implementing ncaFsSectionCheckHashRegionAccess().
* ncaGetFsSectionHashTargetProperties() is now used in pfs.c, romfs.c and bktr.c to retrieve the properties from the target hash layer.
* Updated sanity checks in pfsInitializeContext(), romfsInitializeContext() and bktrInitializeContext().
