v0.3.0

The package is now called BAccMod instead of acceptance_modelisation. The licence have been updated to the LGPv3 licence.
This update solve a few bugs on background orientation.

There are also several improvement and new functionality :

• Add possibility to compute background from off runs
• New algorithm for the zenith adaptive binning (grouping as function of livetime, or livetime per wobble position)
• Possibility to fit spatial model for 3D background
• Add option for automatic run splitting for better zenith dependent model
• Add option to compute the final model of a run as the average model along the zenith track
• Improvement in the log provided by the tool
• Optimization on various element of the code including 3D model creation

Contributor to this release :
@gabemery
@mdebony
@MSCarrasco
@StFroese