Allow servers to control the mod

[VidTu]

Some servers do have anti cheats or packet limiters Some admins just want to restrict using mods like this (which can cause problems with player moderation) To achieve this, I've made a way for servers to block this mod or handle ghost blocks at their behalf. That being said, the server can select the mode:

• Enabled (default): Like it used to be, using C2S destroy packets.
• Disabled: Fully disable the mod.
• Custom: Send a custom payload on key press, let the server decide how to resync blocks.