CORE-5386 Added file_parameters UUID conversions.

Updated the file_parameters conversion to preserve the old id column as id_v187, then just add all new UUIDs in a new id column.
Updated input_output_mapping to preserve the old input and output columns in the same way.
This may preserve duplicated file_parameters, but it's a simpler conversion.
CORE-5386 Began splitting table conversions into separate files.