Add prices on Funko Pop

[necraidan]

Find a way to grad prices on pops.

[necraidan]

With Mode, Highest, Lowest and average price.

pseudo code of mode:

let mode2 = (arr) => {
	let ref = {};
	arr.forEach(elt => {
		if(!ref[elt]){
			ref[elt] = 1;
        }else{
			ref[elt]++;
        }
	})
	return arr.reduce((acc, elt) => ref[elt] > ref[acc] ? elt : acc); 
}