Separate industrial electrification & hydrogen levers and wedges

[jrissman]

Anand pointed out that a crucial point we try to make to audiences right now about decarbonizing industry is to rely on direct electrification of heat rather than burning hydrogen to the greatest extent possible. However, the EPS has them both as part of a "fuel shifting" lever, so it creates a single wedge in the wedge diagram that is labeled "Electrification + Hydrogen." We need this as two wedges in order to make the point above to policymakers (to show we mostly rely on electrification, with only a small contribution from hydrogen). Therefore, we need to split the industrial fuel switching lever into one for electrification and one for shifting to hydrogen combustion, to enable it to be graphed as two wedges. This should be a fairly straightforward edit.

[jrissman]

This issue was resolved as part of the work on issue #266.