Expose sendPacketQueued to unsafe interface

[Outfluencer]

No description provided.

[Outfluencer]

I needed this method multiple times, and at the end i did it always with reflections, we should expose it.

For exaple if you want to send a bossbar packet to all players,
Maybe the player is in config state, and sending the packet with the old unsafe method will fail

[Janmm14]

I thought that bungee automatically queued packets when needed.

[Outfluencer]

It does not. (not when using unsafe#sendPacket())