JS: MapTool.tokens.getTokenByID should be able to check other maps and return null instead of an error when ID isn't found.

[melek]

Describe the bug
MapTool.tokens.getTokenByID has two issues:

1. It cannot find tokens on maps that aren't the current map.
2. When the token ID is invalid or exists on a different map, it returns an error which breaks the macro, rather than 'null':

java.lang.NullPointerException: Cannot invoke "net.rptools.maptool.model.Token.getId()" because "this.token" is null error executing expression js.evalNS("test", ' MapTool.tokens.getTokenByID("C03957B1EDB44293BF8B471B5867C99B"); ').

I think a null result would be more useful. There may be a way to handle that error that I don't know about. If there is, it isn't obvious to me

To Reproduce

1. Create a new campaign and add a 'Hero' token. Impersonate the token and run `[r: currentToken()] in chat to obtain the ID.
2. Run the following macro, replacing the ID with your own:

[r: js.evalNS("test", 'MapTool.tokens.getTokenByID("A80B7011AF66452CBD425448BF153434")')]

3. Macro runs, returning the ID of the token that has been fetched.
4. Make a new map. Run the macro again.
5. See error.

Expected behavior

1. I expect to be able to choose the scope of my search for the ID to either the current map, a specific map (or list of maps), or all maps.
2. I think getting a null result or an empty string when the token isn't found would make more sense.

MapTool Info

• Version: 1.10.2
• Install: Uninstalled all other versions and freshly installed.

Desktop (please complete the following information):

• OS: Windows 10.

Additional context
Identified by @perkinslr in this Discord discussion.

[ColdAnkles]

Made this my first attempt at contributing under #4296