[Optimize] Add options to reduce unnecessary packets

[VeVeVeVel]

Description

This PR applies an optimization patch from the Canvas project to Leaf. It introduces a rough filter for ClientboundSetEntityMotionPacket, which can reduce bandwidth usage by up to 60%.
https://github.com/CraftCanvasMC/Canvas/blob/ver/1.21.11/canvas-server/minecraft-patches/sources/net/minecraft/server/level/ServerEntity.java.patch

While entirely disabling this packet causes major desync issues, this patch carefully filters the packets while retaining them for specific entities that rely on them for smooth visual gameplay.

Implementation Details

The packet is filtered out by default when the ReduceUselessPackets.filterClientboundSetEntityMotionPacket config is enabled, except for the following entities:

1. Squids: Required as they are mobs with a 360° range of rotation.
2. Item Entities: Disabling this causes glitches and client-side desyncs (often within 0.5 blocks). Packets are only sent if the item has actually moved (flag1).
3. Ender Eyes: The client does not have access to the Stronghold structure data to calculate velocity on its own, so it relies on the server sending the velocity via this packet.
4. Shulker Bullets: Since their trajectory uses randomness, we must send velocity packets to ensure their movement remains smooth on the client.

Credits

• Original Project: CraftCanvasMC/Canvas
• Original Author: Dueris
• Original License: GPL v3

[VeVeVeVel]

Description

This PR adds the disable-useless-particles configuration to reduce unnecessary network traffic and server load.

About Disable Useless Particles:
This feature disables the server-side logic for the following cosmetic particles:

• Sprint Particles
• Death Particles
• Effect Particles
• Water Splash Particles
• Bubble Column Particles

As noted by the original developer of this patch:

"It is recommended to enable these options, as the client displays most of these particles already, so the server-side particle logic is not needed."
CraftCanvasMC/Canvas@f43bf76
https://github.com/CraftCanvasMC/Canvas/blob/ver/1.21.11/canvas-server/minecraft-patches/sources/net/minecraft/world/entity/Entity.java.patch
https://github.com/CraftCanvasMC/Canvas/blob/ver/1.21.11/canvas-server/minecraft-patches/sources/net/minecraft/world/entity/LivingEntity.java.patch

By disabling this unneeded server-side logic, we can effectively save network bandwidth, all while maintaining the exact same visual experience for players.

Credits

• Original Project: CraftCanvasMC/Canvas
• Original Author: Dueris
• Original License: GPL v3