Bnlearn

* improved speed in `predict` functionality
* Add `scoretype `to `parameter_learning`

* smooth parameter added to `parameter_learning`


import bnlearn as bn
DAG = bn.import_DAG('water', verbose=0)
Sampling
df = bn.sampling(DAG, n=1000)
Parameter learning
model = bn.parameter_learning.fit(DAG, df, smooth=None)

* Fix for plotting due to new version of ``networkx``. The version of ``networkx`` should be >= 2.7.1
* Layout can now be changed more easily
* figsize added as an input parameter which is more convenient than width/height.


import bnlearn as bn
df = bn.import_example('asia')
model = bn.structure_learning.fit(df)
Plot
bn.plot(model)
Plot with different layouts
bn.plot(model, params_static={'layout':'spectral_layout'})
bn.plot(model, params_static={'layout':'planar_layout'})
bn.plot(model, params_static={'layout':'kamada_kawai_layout'})
bn.plot(model, params_static={'layout':'spring_layout'})
bn.plot(model, params_static={'layout':'circular_layout', "figsize": (15, 10)})

* added `pyvis `to setup file and requirements.

* fix for `bn.print_CPD()`
* name convention: bayesianmodel into bayesiannetwork

* Name convention: BayesianModel is changed into BayesianNetwork