We should update the `LinearProgram` symbol and `LinearProgramNode` to use the SciPy's [linprog()](https://docs.scipy.org/doc/scipy/reference/generated/scipy.optimize.linprog.html) function when it's available. This is an alternative way to address https://github.com/dwavesystems/dwave-optimization/issues/549 when combined with https://github.com/dwavesystems/dwave-optimization/pull/598
We should update the
LinearProgramsymbol andLinearProgramNodeto use the SciPy's linprog() function when it's available.This is an alternative way to address #549 when combined with #598