* Call llc, ld from within onnx-mlir.
* Rename EmitLLVMBC -> EmitLib., reorder header files
* Checkpoint, debug.py works.
* Automatically generate inputs in debug.py.
* Use float.
* Fix merge conflict, remove RapidCheck from this patch.
* Remove submodule rapidcheck properly.
* Reformat code.
* More comments.
* Add documentation.
* Add documentation to navigation.
* Account for the fact that some initializers may also appear as input.
Tian Jin