Create new data storage and PHI related guidance to reflect merger

[vortexing]

Proposed Domain Scientific Computing with an additional preface and link from Data Science

Content Summary https://sciwiki.fredhutch.org/scicomputing/store_overview/ The table specific to the Hutch needs to stay here, BUT the context of how to know if your data has/is PHI or not should be over in Data Science. Context that's general to data as a whole in Data Science, and specific Hutch storage locations in SciComp

Local Content Expert(s) @vortexing and @atombaby and @bmcgough

closes #700

[monicagerber]

I think this will be solved by #971 . Let me know what you think @vortexing .

[laderast]

In review.