Use BracketingNthOrderBrentSolver instead of BrentSolver

[axkr]

Suggestion to use

• BracketingNthOrderBrentSolver in FindRoot instead of BrentSolver
• make BracketingNthOrderBrentSolver the default solver instead of NewtonSolver
• use NewtonRaphsonSolver and DerivativeStructure for Method->Newton and delete old NewtonSolver
• see DerivativeStructure for symbolic derivatives Hipparchus-Math/hipparchus#51

See example from issue 181 from old bug tracker

• https://bitbucket.org/axelclk/symja_android_library/issues/181/

    In [13]: FindRoot(2^x==0,{x,-100,100}, Method->Brent)
    Out[13]: {x->-100.0}

Symja uses the Hipparchus BrentSolver method in this example.
One requirement for the BrentSolver is that "The given interval must bracket the root."

BracketingNthOrderBrentSolver solves this issue.