Metadata concept of gosling/gosling-meta

[ThHarbig]

How do we want to handle metadata for tracks in gosing/gosling-meta in the future? For example, tracks might be associated with several metadata attributes, e.g. the organism, date, lab if we think about sequencing data.

We could either

• Read in a separate metadata file in gosling.js and send data together with corresponding metadata to the outside world
• Read in metadata in gosling-meta (How to link data with metadata in this case?)