Remove unnecessary sign updates

[TylerS1066]

With the merging of #670, all signs are now updated on translation and rotation. To prevent unnecessary sign updates and improve performance, we should find a way to fake out the client to think the sign updated without going through the work of actually updating it.

[Intybyte]

For now I implemented a Patch and plan to implement similar ones in this repository, it would be good if there was a way to fix this without protcol lib, it uses bytecode manipulation to replace the sendSignEvents() method. (I think it works but i hope nobody actually runs this on a server)