Block: specifying required type/state data bits is no longer required

RuntimeDataSizeCalculator allows calculating the number of required bits from describeType directly, which considerably reduces boilerplate code.

src/block/FrostedIce.php

@@ -32,8 +32,6 @@ class FrostedIce extends Ice{
 
 	protected int $age = 0;
 
-	public function getRequiredStateDataBits() : int{ return 2; }
-
 	protected function describeState(RuntimeDataDescriber $w) : void{
 		$w->boundedInt(2, 0, self::MAX_AGE, $this->age);
 	}