[fractal-adl] Control the file created by FractalADLLogManager
The FractalADLLogManager will always create a log file with a name which is not easily controllable ("target/fractaladl-log.txt"). This file will be created even if there is nothing to run. For example, running the ceciliac script with option -h will print the help message and quit, but an empty file was created in the directory where the tool was launched.
It would be nice to
- Provide a mechanism (a property ?) to override the default log file name.
- Only create when the first message is send to the log.