renaming particle collection, getting rid of unit system
reworked particle class
fixed plotting to use triangle.py
old shite
updated orbit
typo in particles, added plotting to orbits, tests
move core stuff to util
started working on statistical model class
moved inferpotential to StatisticalModel.run()
made a general likelihood function
remove special lm10 inference file
move param ranges to potential file
added todo
remove out of date inferpotential file
added a bunch of todos
added validation for parameters
store likelihood function
fix bugs / typos
remvoe util tests and add stat model test
parameter bounds