libctru 1.2.1 & updated 3ds examples.

[WinterMute]

libctru 1.2.1 and updated example code is now available through the windows installer and perl updaters as usual as well as on github at https://github.com/smealum/ctrulib/releases and https://github.com/devkitPro/3ds-examples/releases/

• Added NFC support
• Update and renamed NFC_AmiiboConfig members
• Added TickCounter for measuring performance
• Added (linear/vram/mappable)GetSize for retrieving allocated buffer size
• Added nim:s client implementation.
• Correct bus clock used for time calulations
• Default to file write without internal copy buffer
• GPUCMD_Add: allow NULL for adding zerofilled parameter data
• Clarify threadFree usage in documentation
• Add GPU_TEXFACE enumeration

The examples have also now been updated to fully support parallel builds. You can use the template Makefile to add this support to your own projects.