How to set SNOPT tolerances with ezsolve

SNOPT tolerances (and other parameters) can be set in the Prob.SOL.optPar vector.

With tomSym/ezsolve, this vector is set as options.Prob.SOL.optPar. The vector should first be initialized as -999, to leave all other parameters at their default values.

Example:

 optPar = repmat(-999,72,1); % -999 means to use default values
 optPar(10) = 1e-3; % set major optimality tolerance
 options.Prob.SOL.optPar = optPar;
 solution = ezsolve(objective, constraints, guess, options)