Simplify the file names inside the detailed_results_folder

[npatki]

Version: 0.8.0 (in development)

Problem Description

If I provide a detailed_results_folder, the items in that folder have very long names. That seem to follow the format:

<synthesizer_name>_<dataset_name>_<iteration_num>_<run_id>_data.gz
<synthesizer_name>_<dataset_name>_<iteration_num>_<run_id>_scores.csv

Example:

results_folder/
|-- GaussianCopulaSynthesizer_alarm_1_181232_data.gz
|-- GaussianCopulaSynthesizer_alarm_1_181232_scores.csv

But due to the changes we are making, iteration_num and run_id are not really needed. Especially if we enforce that synthesizers are unique (see #190)

Expected behavior

Remove the iteration_num and run_id information from the file names. The resulting file names should be shorter & simpler.

results_folder/
|-- GaussianCopulaSynthesizer_alarm_data.gz
|-- GaussianCopulaSynthesizer_alarm_scores.csv