devkitA64 release 12 & libnx v1.3.1

[WinterMute]

devkitA64 release 12 is now available via pacman. Use sudo (dkp-)pacman -Syu to update or sudo (dkp-)pacman -S devkitA64 to install.

• update to binutils 2.31.1
• update to gcc 8.2.0
• fix exception handling
• produce unwind tables by default.

[fincs]

libnx v1.3.1 is now available via pacman. Use sudo (dkp-)pacman -Syu to update or sudo (dkp-)pacman -S libnx to install.

• Fixed regression in cwd handling.
• Added fs commands: fsOpenBisStorage, fsOpenBisFilesystem, fsOpenFileSystem(WithId), fsStorageWrite/Flush/GetSize/SetSize, fsFsCleanDirectoryRecursively.
• Added ncm commands: ncmContentMetaDatabaseList/DisableForcibly, ncmContentStorageXYZ family of functions.
• HID service now works in sysmodules.
• Fixed errors in ncmContentMetaDatabaseListApplication and ncmContentMetaDatabaseSet/Get.
• Fixed data races in kernel version detection functions.
• Fixed return-from-main to honor atexit handlers.
• Further improvements to overall system stability and other minor adjustments to enhance the user experience.