Scoreboard Bitwise Operations

These operators to scoreboards should be added:

"|=" ORs the bits of the target's score to the source's score

"&=" ANDs the bits of the target's score to the source's score

"^=" XORs the bits of the target's score to the source's score

"<<" Shifts the bits of the source's score to the left by the value of the target's score

">>" Shifts the bits of the source's score to the right by the value of the target's score

While technically possible to do this with the current scoreboard operators, it's very complicated and inefficient to do so.