MP3 2.5 files are unsupported and result in undefined behaviour

[markozajc]

As a continuation of Walkyst/lavaplayer-natives-fork#6, it seems that this issue isn't caused by libmpg123 itself, but by lavaplayer incorrectly determining the MP3 parameters if the input is a MP3 2.5 file.
This results in a slew of vague and unhelpful mpg123 error messages (shown in the issue linked before).

I'm not entirely sure what it would take to implement MP3 2.5 support, but reworking this, and everything that depends on it, is probably a good start:

lavaplayer/main/src/main/java/com/sedmelluq/discord/lavaplayer/natives/mp3/Mp3Decoder.java

Lines 250 to 252 in 61089ff

	private static boolean isMpegVersionOne(byte[] buffer, int offset) {
	return (buffer[offset + 1] & 0x08) == 0x08;
	}

The above method incorrectly returns true for my sample file. Forcing it to return false doesn't solve much, because the bitrate and sample rate are still incorrectly determined.