Static arrays: index & property access

[aplavin]

Static arrays support accessing by index or by property name:

julia> using StaticArrays, StructArrays

julia> v = SVector(1, 2)

julia> v[1]
1

julia> v.x
1

However, a struct array of static arrays can only retrieve components by index:

julia> a = StructArray([v])
1-element StructArray(::Vector{Int64}, ::Vector{Int64}) with eltype SVector{2, Int64}:
 [1, 2]

julia> a.:1
1-element Vector{Int64}:
 1

julia> a.x
ERROR: type Tuple has no field x

Can both be supported? I understand this isn't straightforward, but would be useful.