Several files were missed when we ran ccformat on our source base. This
change reformats these files so they are LLVM convention compliant.
Add .clang-format to get rid of the style errors. Add clang-format on
and off comments to LLILCPal.h and readerir.h to stop trying to format
certain parts of the code.
Factor out opcodes array to bytecodetowvmcode.def so clang-format
doesn't format it.
Michelle McDaniel