IntegralProblem keywords not passed to solvers

[lxvm]

As reported on Discourse the documentation says that keywords passed to an IntegralProblem are passed onto the solvers, but I do not believe this is the case for any solver.

I think it would be straightforward to fix this, e.g. by merging prob.kwargs into kwargs in init (see below)

Integrals.jl/src/common.jl

Line 17 in a1ca91d

function SciMLBase.init(prob::IntegralProblem{iip},

I am raising this issue because I would like some input on how this is handled in other SciML packages before attempting a fix, since I see the same language in the documentation, e.g. in NonlinearSolve.jl, but would like to ask what is done consistently in the ecosystem.