public static int getMinimumStorageSize(int bitSize) {
		return getMinimumStorageSize(bitSize, 0);
	}
Get the minimum storage size in bytes for a given size in bits.
This does not consider the bit offset which may increase the required 
storage.
@param bitSize number of bits within bitfield
@return minimum storage size in bytes
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/model/data/BitFieldDataType.java