Future Thoughts: Implement UCSC Cell Browser

[jashapiro]

UCSC, home of all things genomic browser, has a new tool Cell Browser tool for compiling and visualizing Singe Cell Data. https://cells.ucsc.edu/
When we have sufficient data, this might be a good way to compile the SCPCA data for sharing and consumption.

More documentation here: https://cellbrowser.readthedocs.io/index.html

We may also want to consider sending data to UCSC to host, if the terms of our sharing allow it (I expect they do?)