RationalQuadraticSpline for batch dimension

Author: mmikhasenko

src/bijectors/rational_quadratic_spline.jl

@@ -177,6 +177,10 @@ function transform(b::RationalQuadraticSpline{<:AbstractMatrix}, x::AbstractVect
     ]
 end
 
+function transform(b::RationalQuadraticSpline{<:AbstractMatrix}, x::AbstractMatrix)
+	return mapreduce(b, hcat, eachcol(x))
+end
+
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 ### Inverse evaluation ###
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