Missing utility methods in StudioApp

[aqmnguyen]

Would be nice if the StudioApp contained all the methods in the studio-utility library we have, some useful methods SE use regularly that are missing:

attributesForTag
attributesByTagID
replaceToken

[mnutt]

I think that most of what studio-utility offered is covered by studio-app, but if there are gaps I definitely want to fill them!

// studio-utility:
StudioUtility.attributesForTag(tagId)
// studio-app:
this.allTags().find(t => t.id === tagId)

// studio-utility:
StudioUtility.replaceToken(element, 'foo', 'bar')
// studio-app:
this.replaceTokens(this.allTags(), { foo: 'bar' })

The this.allTags() method is pretty versatile; you can do things like this.allTags().filter(t => t.toolName === 'hammer') to get all of your hammer layers. And if you want to get the elements themselves you can chain .map(t => t.element) to get an array of DOM elements.