CBX 0.1.5

The main updates in this release:

• allow multi-dimensional input spaces. Particles are stile of size (M,N,d) but d can be a tuple now.
• remodeled termination criteria. Allowing termination per run now.
• Noise models are not part of the CBX class anymore and can be specified as a callable.
• Exposed norm, normal, copy and compute_consensus function
• Added proper implementation of effective step size scheduler