Julia wrapper for liberfa.
julia> Pkg.add("ERFA")
julia> using ERFA
julia> u1,u2 = eraDtf2d("UTC", 2010, 7, 24, 11, 18, 7.318)
(2.4554015e6,0.47091803240740737)
julia> a1,a2 = eraUtctai(u1, u2)
(2.4554015e6,0.4713115509259259)
julia> t1,t2 = eraTaitt(a1, a2)
(2.4554015e6,0.4716840509259259)
julia> eraD2dtf("tt", 3, t1, t2)
(2010,7,24,11,19,13,502)