Correctly declare library dependencies to core/drupalSettings

Problem/Motivation

Currently there are several JavaScript files in different libraries of Gin that make use of the drupalSettings variable. Unfortunately these libraries do not declare their core/drupalSettings dependency, which may cause JavaScript errors in certain circumstances - e.g. when no other library on a page requires the core/drupalSettings library as well.

Steps to reproduce

Create a page where only Gin's libraries are loaded, but not core/drupalSettings directly

Proposed resolution

• Correctly declare library dependencies to core/drupalSettings in gin.libraries.yml

Remaining tasks

• Create patch / issue fork to fix the issue

User interface changes

n/a

API changes

n/a

Data model changes

n/a