Bug define LLSModel with sparse matrices

[tmigot]

I am not sure wether this is a LLSModels issue or SparseMatricesCOO issue.

using SparseArrays
using LLSModels # 0.3.2
A = sparse(Matrix(1.0I, 3, 3))
b = ones(3)
LLSModel(A, b)

returns

ERROR: MethodError: no method matching SparseMatricesCOO.SparseMatrixCOO(::Int64, ::Int64, ::Vector{Int64}, ::Vector{Int64}, ::Matrix{Float64})
Closest candidates are:
  SparseMatricesCOO.SparseMatrixCOO(::Integer, ::Integer, ::Vector, ::Vector, ::Vector) at .julia\packages\SparseMatricesCOO\z5uST\src\coo_types.jl:51
Stacktrace:
 [1] LLSModel(A::SparseMatrixCSC{Float64, Int64}, b::Vector{Float64})
   @ LLSModels .julia\packages\LLSModels\yz8jF\src\lls_model.jl:34
 [2] top-level scope
   @ REPL[31]:1