Initial commit for EFI Byte Code (EBC) disassembler.

![ebc_radare](https://f.cloud.github.com/assets/56672/1649101/132f6f1a-59e1-11e3-8227-3c1ce83613fc.jpeg)

Implemented inial support for EFI Byte Code. Tested it against Fat.efi from Tianocore. Code tries to follow the official specs as close as possible. Although I have not figured out how to make this disassembler default for PE/COFF files (which EBC executables are) in case architecture is 0x0ebc in the file header.