Show interactive plot of Robust ICA clusters in the HTML reports

[eurunuela]

Closes none. Stems off a discussion in #1013.

Changes proposed in this pull request:

• Add a function to the dynamic reports file to generate the plot with Bokeh.
• Return necessary labels and tsne values from Robust ICA.
• Add necessary CSS style attributes to position the plot in the report.

[eurunuela]

What do you think @handwerkerd @tsalo? Only the 5 echo integration test runs robustica, so you may have to test it on some other data if the report from the test isn't enough.

I still have to handle the case where Fast ICA is used instead. I'm open to suggestions on how to handle the variables that need to be passed down to make the Bokeh plot.