Make preset data an external dependency

[quincylvania]

Closes #7702. Re: #6483.

This removes the presets, fields, deprecated tags, and discarded tag data files and instead makes iD depend on the new openstreetmap/id-tagging-schema package, which in turn depends on the ideditor/schema-builder package.

Moving presets and other tagging data outside iD has some clear advantages:

• Tagging issues can be detached from code issues
• Other projects can depend on iD's presets directly
• Developers can more easily create their own presets and plug them into iD
• The latest presets could potentially be loaded at runtime instead of waiting for new releases

In the future, I'd like to see if we can move even more tagging logic out of iD's source code and into the tagging schema repo.