Function builtin_qbinom 

fn builtin_qbinom(
    args: &[RValue],
    named: &[(String, RValue)],
) -> Result<RValue, RError>

Binomial quantile function (inverse CDF).

Uses bisection on the discrete CDF.

@param p probability vector @param size number of trials @param prob probability of success on each trial @return numeric vector of quantiles