PR change the location of bytebuf modification methods from PacketWrapper to a seperate exposed API

[Tofaa2]

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This PR aims to replace the PacketWrapper#readSomething and PacketWrapper#writeSomething with a more scalable and convenient API. Seperating types and no longer depending on Object for everything in PacketWrapper that is meant to be ByteBuf (kinda)

[Tofaa2]

PR Is not yet complete, this is just an example of how the API would be introduced to packetevents

[sh2kcs]

When will this be added?

[retrooper]

It's not complete, and it's still marked as a draft?

[Tofaa2]

Pr back to being actively worked on