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

• 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.

[JRoy]

overall looks fine, can you just update the skullCommandUsage messages in the messages.properties file

[Huge-mistake]

overall looks fine, can you just update the skullCommandUsage messages in the messages.properties file

Apologies for the interruption, can this PR be merged now? I would like to utilize this feature in the menu to provide players with skulls.