Add give argument to skull command

[Yurakaii]

Information

This PR closes #5762.

Details

Proposed feature:
This adds the ability to give a skull to another player using the /skull command with a second argument, if you only provide one argument the command will work as it previously did.

The new usage of the skull command is: /<command> [owner] [player]

Environments tested:

OS: Windows 11

Java version: 21

• [x] Most recent Paper version (1.20.6, git-Paper-137)
• [ ] CraftBukkit/Spigot/Paper 1.12.2
• [ ] CraftBukkit 1.8.8

Demonstration:

This gives the dinnerbone's skull to trashdrumlinfly:

trashdrumlinfly received dinnerbone's skull

The command can still be used as how it worked before by just providing the first argument.