Method randi

src/danfojs-base/shared/utils.ts:511–513

(a: number, b: number)

        let genNum: Array<number> = [];

        function randi(a: number, b: number) {
            return Math.floor(Math.random() * (b - a) + a);
        }

        function recursive(val: number, arr: Array<number>): any {
            if (!arr.includes(val)) {