linux/nolibc/shellcode: add x86 and x64 shellcodes
linux/nolibc/shellcode: add x86 and x64 shellcodes

While participating in http://adctf2014.katsudon.org/ I found it useful
to have scanf-proof shellcodes written down somewhere.

fishilico/shared,fishilico/shared,fishilico/shared,fishilico/shared,fishilico/shared,fishilico/shared,fishilico/shared