Gadma

See 56 .

1. VCF data format was add as one of input data for GADMA! Now SFS data can be build from VCF and popmap files like:

param_file
Input data: vcf_file, popmap_file

2. `Input file` setting changed to `Input data` option.

1. Add Bayesian optimizations to GADMA. There are three versions of it:

* `GPyOpt_Bayesian_optimization`
* `SMAC_squirrel_optimization`
* `SMAC_BO_optimization`

2. Add ``demes`` as a new engine for models plotting.
3. Add ``Inbreeding`` to infer inbreeding coefficients with ``dadi`` engine.
4. Update interface of ``gadma.optimizers``.
5. Move ``Multinom`` option from deprecated options to changed. Add ``Ancestral size as parameter`` instead ``Multinom``.
6. Update docs.

Parameters for local optimizers were taken from dadi.