Implement the Dice submodule for Dices module

Basic implementation of the Dice submodule

[ ] Dice Constructor defines number of sides
[ ] Dice is not copyable only movable
[ ] std::mt19937_64 is used as a pseudorandom generator
[ ] PRNG can be inited by a random number or a custom number
[ ] sides() return the number of sides
[ ] roll() and ()operator rolls the dice and returns number between (0,side number>
[ ] operator defines how many times a dice is rolled and returns sum (2D)
[ ] +operator adds this value to the roll value
[ ] supports and + operator combined (2D+3) = roll()+roll()+3
[ ] ThreadSafeDice class will inherit from Dice
[ ] ThreadSafeDice the seed shall be protected

Dvorkam / RPG-Engine