function merge_icd_seg_conseg in rft submodule produces unwanted csv files

[daniel-sol]

Upon execution of the function df in the rft submodule function merge_icd_seg_conseg is called,
this again produces three csv files:

• con.csv
• seg.csv
• icd.csv

These are also just placed in the current working directory. The line:
if logger.level <= logging.DEBUG: (line 411)
Should fix it, but no log level is set directly in module, and setting loglevel in code that calles the module does not successfully stop the generation of these

[daniel-sol]

It also seems odd that this should be dependent on log level