Add type to conviently lookup entities by name

[tygyh]

Objective

• Fixes Add NameLookup Type to make looking up entities by name easier #5976

Solution

• Rebase and solve change conflicts.

[tygyh]

When rebasing this I got stuck on which changes to take from this or #6785. I do not know who to ask for help with this.

[alice-i-cecile]

IMO you should add only the NameLookup in this PR: it'll be easier on merge conflicts and there's a good chance that @pcwalton's plan to avoid using names to lookup animations goes through.

[tygyh]

I do not see a way to implement this because of the conflicts with #6785. Since there seems to be a different solution in the works by PCWalton I will leave this on hold for now.