Update optimizationsystem.jl

Adds documentation following up from #1943 , if `cons_j` and `cons_h` are set by default to `false`, it is necessary to document that the user may need to set them to `true`. Otherwise, certain solvers such as `IPNewton()` with `OptimizationOptimJL` fail with no documentation.

Author: avinashresearch1

src/systems/optimization/optimizationsystem.jl

@@ -191,13 +191,16 @@ function DiffEqBase.OptimizationProblem{iip}(sys::OptimizationSystem,u0map,
                                           parammap=DiffEqBase.NullParameters();
                                           grad = false,
                                           hess = false, sparse = false,
+                                          cons_j = false, cons_h = false,
                                           checkbounds = false,
                                           linenumbers = true, parallel=SerialForm(),
                                           kwargs...) where iip
 ```
 
 Generates an OptimizationProblem from an OptimizationSystem and allows for automatically
 symbolically calculating numerical enhancements.
+                
+Certain solvers require setting `cons_j`, `cons_h` to `true` for constrained-optimization problems.
 """
 function DiffEqBase.OptimizationProblem(sys::OptimizationSystem, args...; kwargs...)
     DiffEqBase.OptimizationProblem{true}(sys::OptimizationSystem, args...; kwargs...)