* codebase: remove all references to Lockpick / Lockpick_RCM.
* keys: retrieve Atmosphère's key generation in keysLoadKeyset().
* keys: replace all "key_gen_val" references with "mkey_index".
* keys: move latest master key checks in keysReadKeysFromFile() to keysDeriveMasterKeys().
* keys: update latest master key checks to determine if nxdumptool's hardcoded master key vectors are outdated, using the key generation value from Atmosphère. If the master key vectors are outdated, and the newer master key(s) are not available, an error will be displayed.
* nxdt_utils: update logic in utilsReplaceIllegalCharacters() to replace consecutive illegal characters with a single underscore.
* nxdt_utils: move servicesGetExosphereApiVersion() to nxdt_utils as utilsGetExosphereApiVersion().
* nxdt_utils: define internal UtilsExosphereApiVersion struct, which is used to parse the output from utilsGetExosphereApiVersion().
* nxdt_utils: add utilsGetAtmosphereVersion(), utilsGetAtmosphereKeyGeneration() and utilsGetAtmosphereTargetFirmware() functions.
* services: remove servicesGetExosphereApiVersion().
* services: Atmosphère version is now retrieved via utilsGetAtmosphereVersion().
* Refactored keydata handling.
* Sealed NCA KAEKs are now generated at startup, and NCA key area entries are now decrypted by keysDecryptNcaKeyAreaEntry(), reducing the number of calls to spl functions.
* The eTicket RSA device key is now retrieved and decrypted at startup. RSA-OAEP wrapped titlekeys are now decrypted by keysDecryptRsaOaepWrappedTitleKey().
* Renamed titlekek -> ticket common key throughout the codebase.
* Added NcaKeyAreaEncryptionKeyIndex_Count and NcaKeyGeneration_Max enum values to nca.h.
* Proper usage of strcasecmp() in some functions.
* Moved syscall hint checks from keys.c to mem.c.
* Define illegal FS characters as an array rather than a char pointer.
* Services are now initialized before the CFW type checks.
* Fixed pcv/clkrst service initialization.
* Implemented additional thread safety and logfile output to service functions.
* Slightly tweaked running service checks.
* Added proper Markdown documentation for the USB ABI.
