Plot: PDB structures

[diegozea]

PV can be useful for this: https://github.com/biasmv/pv

[diegozea]

Now it's possible to write the PDBFile and opens it with PyMol or Chimera ;)

[diegozea]

Now, there is also a plot recipe for a Vector of PDBResidues, but that recipe could be optimized to generate one group per chain: JuliaPlots/Plots.jl#1167
Also, It would be great to add a (NaN,NaN,NaN) point where residues are not contiguous to show missing residues.