public long readNextLong() throws IOException {
		return readNextLong(converter);
	}
Reads the long at the current index and then increments the current
index by <code>SIZEOF_LONG</code>.
@return the long at the current index
@exception IOException if an I/O error occurs
Ghidra/Features/Base/src/main/java/ghidra/app/util/bin/BinaryReader.java