[feature] Add Player::sendRawPacket to allow sending payloads directly to a player

[wu-vincent]

Is your feature request related to a problem? Please describe.
Plugins, such as anti-cheat plugins, often require more granular control over packet sending. Creating a wrapper class for all packets can be a tedious process. As a temporary solution, allowing plugins to send binary payloads directly would be beneficial. Plugins would be responsible for encoding the packets correctly. In the future, we may add wrappers for all packets.

Describe the solution you'd like
Add Player::sendRawPacket to allow sending binary payloads directly to a player.

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[github-actions]

This issue has been automatically marked as stale because it did not have recent activity. It will be closed in 15 days if no further activity occurs. If you wish not to mark it as stale, please leave a comment in this issue.