tweak(scripting/v8): better error messages for ref calls

[AvarianKnight]

Goal of this PR

Improve error messages when unpacking function unpacker

Currently if you error in this section of code on the server you get a hard to use stack trace that doesn't provide you any insights

How is this PR achieving the goal

1. Cache the resource that originally called an export to x resource
2. Catch unpack if it errors and return the default null
3. Warn the end user if the resource recently restarted, or point them in the right direction as ref calls should only be invalidated on resource restart.

This PR applies to the following area(s)

ScRT: js

Successfully tested on

Game builds: N/A

Platforms: Windows

Checklist

• Code compiles and has been tested successfully.
• Code explains itself well and/or is documented.
• My commit message explains what the changes do and what they are for.
• No extra compilation warnings are added by these changes.