Add meta(), metafree() methods

Author: Sov-trotter

src/metadata.jl

@@ -5,6 +5,12 @@ end
 
 Feature(x; kwargs...) = Feature(x, values(kwargs))
 
+#can change names?
+GeometryBasics.metafree(F::Feature) = getproperty(F, :data)
+GeometryBasics.metafree(x::AbstractVector{<: Feature}) = [getproperty(i, :data) for i in x]
+GeometryBasics.meta(x::Feature) = getfield(x, :rest)
+GeometryBasics.meta(x::AbstractVector{<: Feature}) = [getproperty(i, :rest) for i in x]
+
 Base.getproperty(f::Feature, s::Symbol) = s == :data ? getfield(f, 1) : s == :rest ? getfield(f, 2) : getproperty(getfield(f, 2), s)
 Base.propertynames(f::Feature) = (:data, propertynames(f.rest)...)