remote info not added to TF object in process_mth5

[kkappler]

This seems to be causing emtfxml TFs written by aurora to fail ingest.

I will add an Exception catch and raise warning in mt_metadata for this, but in general the RR info should be getting packed into the emtfxml

tf.read(self.xml_file_base)
File "/home/kkappler/software/irismt/mt_metadata/mt_metadata/transfer_functions/core.py", line 1781, in read
self._read_write_dict[file_type]["read"](self.fn, **kwargs)
File "/home/kkappler/software/irismt/mt_metadata/mt_metadata/transfer_functions/core.py", line 1982, in from_emtfxml
emtfxml_obj.read(self._fn)
File "/home/kkappler/software/irismt/mt_metadata/mt_metadata/transfer_functions/io/emtfxml/emtfxml.py", line 310, in read
attr.read_dict(root_dict)
File "/home/kkappler/software/irismt/mt_metadata/mt_metadata/transfer_functions/io/emtfxml/metadata/processing_info.py", line 83, in read_dict
getattr(self, key).read_dict(pop_dict)
File "/home/kkappler/software/irismt/mt_metadata/mt_metadata/transfer_functions/io/emtfxml/metadata/remote_info.py", line 48, in read_dict
pop_dict = {key: remote_info_dict.pop(key)}
AttributeError: 'NoneType' object has no attribute 'pop'