Cross Linking from Embedding Metadata

[smcgregor]

I have a several instance visualizations that could potentially explain why a sound file embedding lies near instances of another class. I would like to link to these visualizations from the instances in the embedding projector. Since the metadata boxes are constructed from the tsv file as safe-encoded strings and not as HTML, I don't believe it is possible to cross-link to either a tensorboard plugin or an external visualization service. Is this the case? I can copy/paste the href out of the metadata, but I would prefer better UX. Thanks!

[smcgregor]

@dsmilkov Any updates here? I am deciding if/how I hack this as a holdover. I can also look to open a PR if desired. Thanks!