feat: send to player specific settings

[LumiFae]

Description

Adds a function to send specific settings to a specific player. This could be useful when you want to send settings depending on an event that gets triggered. I.e. supporter only benefits that you check via group, which isn't set during the OnVerified event.

What is the current behavior? (You can also link to an open issue here)
Can't send specific settings to specific players, have to use SendToAll and that could break in very specific cases.

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Documentations

Submission checklist

• I have checked the project can be compiled
• I have tested my changes and it worked as expected

Patches (if there are any changes related to Harmony patches)

• I have checked no IL patching errors in the console

Other

• Still requires more testing