findScript|findScripts returns Script instead of the deprecated

[saidmoya12]

Description

findScript and findScripts returns Script instead of the deprecated ScriptType.

Changes

Now we can cast in typescript using

const myScript = entity.findScript("scriptName") as MyExtendedScript

Checklist

• I have read the contributing guidelines
• My code follows the project's coding standards
• This PR focuses on a single change

[Maksims]

This PR is potentially will break some advanced code.
First of all properties of a class should start from a lowercase letter, not uppercase.
Additionally it introduces a variable, that is not in private notation, that likely will collide with people's code who uses that property. Polluting script space - should be last resort.

Also, ScriptType extends Script, so there should not be a problem with existing code, as user can easily check for both.
If it is related to TypeScript, then TypeScript related issue should be solved without changing JS side.