GitLab

Has NMS op output a dynamic shape (ONNX spec behavior)
Allows for dynamic input shape to NMS op

* Update is_supported
* Return object from is_supported
* Return by reference in interator

remove print from source

* fix json strings in driver models

Add function argument_from_pointer to allow directly passing a migraphx.shape object and a memory address. 
Expose the is_compiled() method from migraphx::program. 
Expose the enum types under migraphx::op.