Large Update to OrcaSong, mostly usability improvements.

- Implemented a better parser and implemented config files as an input to OrcaSong.
- Got rid of the ORCA_Geo_115lines.txt file, the detector geometry is now read from a .detx file that needs to be supplied with the input file.
- Improved general readability of the code
- fixed run_id readout
- added option to make no timecut