public byte readNextByte() throws IOException {
		byte b = readByte(currentIndex);
		currentIndex += SIZEOF_BYTE;
		return b;
	}
Reads the byte at the current index and then increments the current
index by <code>SIZEOF_BYTE</code>.
@return the byte at the current index
@exception IOException if an I/O error occurs
Ghidra/Features/Base/src/main/java/ghidra/app/util/bin/BinaryReader.java