Population initialization function accepts custom individual init fun…

…ction

src/evolution.jl

@@ -51,10 +51,15 @@ function save_gen(e::AbstractEvolution)
 end
 
 "create all members of the first generation"
-function initialize(itype::Type, cfg::NamedTuple)
+function initialize(itype::Type, cfg::NamedTuple; kwargs...)
     population = Array{itype}(undef, cfg.n_population)
+    kwargs_dict = Dict(kwargs)
     for i in 1:cfg.n_population
-        population[i] = itype(cfg)
+        if haskey(kwargs_dict, :init_function)
+            population[i] = kwargs_dict[:init_function](cfg)
+        else
+            population[i] = itype(cfg)
+        end
     end
     population
 end