added grid constructions for categorical dimensions
added grid constructions for categorical dimensions

dice-project/DICE-Configuration-BO4CO,pooyanjamshidi/BO4CO,dice-project/DICE-Configuration-BO4CO,dice-project/DICE-Configuration-BO4CO,pooyanjamshidi/BO4CO,dice-project/DICE-Configuration-BO4CO,dice-project/DICE-Configuration-BO4CO,pooyanjamshidi/BO4CO,pooyanjamshidi/BO4CO,pooyanjamshidi/BO4CO