Create a new #include "Support/..." directory structure to move things
from "llvm/Support/..." that are not llvm dependant.

Move files and fix #includes

llvm-svn: 1400
diff --git a/llvm/tools/lli/lli.cpp b/llvm/tools/lli/lli.cpp
index ef9dddf..f4145c1 100644
--- a/llvm/tools/lli/lli.cpp
+++ b/llvm/tools/lli/lli.cpp
@@ -8,7 +8,7 @@
 //===----------------------------------------------------------------------===//
 
 #include "Interpreter.h"
-#include "llvm/Support/CommandLine.h"
+#include "Support/CommandLine.h"
 
 cl::StringList InputArgv(""   , "Input command line", cl::ConsumeAfter);
 cl::String MainFunction ("f"      , "Function to execute", cl::NoFlags, "main");