Add a "expand/collapse all" button to the results table

[ppavlidis]

I keep finding myself clicking on all the down arrows to show the experiment details for all my results.

An "expand all" toggle at the top of the table would be great.

We have this kind of thing for the Sample Details tab on our experimental design page e.g.

https://gemma.msl.ubc.ca/experimentalDesign/showExperimentalDesign.html?eeid=1778