Pyp-beagle

- [ADD] Added option to print LaTeX table in column-wise order (one parameter per row)
- [MOD] Changing the default credible interval to be printed to the LaTeX table to 68%
- [ADD] Added command line option to average or not the positive/negative errors printed in the output LaTeX table
- [FIX]Fixing computationof LaTeX table when the summary catalogue has been computed flattening the columns
- [FIX] Fixing command line options dependencies: some options require the option

- [FIX] Fixed y-axis label (units) when plotting EWs vs line fluxes
- [FIX] Spectral indices labels were not correctly printed when reading them from a JSON file

- [FIX] Fixing error when line labels in the spectral indices configuration file do not match the keys in the JSON file

- [FEAT] Adding feature to correctly plot upper/lower limits as uppper/lower facing triangles
- [ADD] Adding option to specify the definition of the upper/lower limits in units of sigma

- [FIX] Missing default (False) flag for --compute-summary option

- [FIX] Fixing errors when no summary_config.json file is present