Move Object format code to lib/BinaryFormat.

This creates a new library called BinaryFormat that has all of
the headers from llvm/Support containing structure and layout
definitions for various types of binary formats like dwarf, coff,
elf, etc as well as the code for identifying a file from its
magic.

Differential Revision: https://reviews.llvm.org/D33843

llvm-svn: 304864
diff --git a/llvm/lib/Object/Decompressor.cpp b/llvm/lib/Object/Decompressor.cpp
index cbc7690..53f084d 100644
--- a/llvm/lib/Object/Decompressor.cpp
+++ b/llvm/lib/Object/Decompressor.cpp
@@ -8,10 +8,10 @@
 //===----------------------------------------------------------------------===//
 
 #include "llvm/Object/Decompressor.h"
+#include "llvm/BinaryFormat/ELF.h"
 #include "llvm/Object/ELFObjectFile.h"
 #include "llvm/Support/Compression.h"
 #include "llvm/Support/DataExtractor.h"
-#include "llvm/Support/ELF.h"
 #include "llvm/Support/Endian.h"
 
 using namespace llvm;