Add energy variables to scenarioMIP mapping

[lecfab]

Purpose of this PR

Remind misses some variables in the reporting for scenarioMIP (see https://github.com/remindmodel/development_issues/issues/387).
This PR adds energy variables:

Investment|Energy Supply|Gases
Investment|Energy Supply|Gases|Biomass
Investment|Energy Supply|Gases|Biomass|w/ CCS
Investment|Energy Supply|Gases|Biomass|w/o CCS
Investment|Energy Supply|Gases|Fossil
Investment|Energy Supply|Gases|Hydrogen
Investment|Energy Supply|Heat|Biomass
Investment|Energy Supply|Heat|Coal
Investment|Energy Supply|Heat|Fossil
Investment|Energy Supply|Heat|Gas
Investment|Energy Supply|Liquids|Fossil
Investment|Energy Supply|Liquids|Gas
Investment|Energy Supply|Solids

Final Energy|Transportation (w/ bunkers)|Electricity
Final Energy|Transportation (w/ bunkers)|Gases
Final Energy|Transportation (w/ bunkers)|Gases|Biomass
Final Energy|Transportation (w/ bunkers)|Gases|Coal
Final Energy|Transportation (w/ bunkers)|Gases|Fossil
Final Energy|Transportation (w/ bunkers)|Gases|Gas
Final Energy|Transportation (w/ bunkers)|Gases|Hydrogen
Final Energy|Transportation (w/ bunkers)|Hydrogen
Final Energy|Transportation (w/ bunkers)|Liquids
Final Energy|Transportation (w/ bunkers)|Liquids|Biomass
Final Energy|Transportation (w/ bunkers)|Liquids|Coal
Final Energy|Transportation (w/ bunkers)|Liquids|Fossil
Final Energy|Transportation (w/ bunkers)|Liquids|Gas
Final Energy|Transportation (w/ bunkers)|Liquids|Hydrogen
Final Energy|Transportation (w/ bunkers)|Liquids|Oil

Checklist:

• I did not use Excel to open csv files (oups i did)
• I checked that no side-effects occur (changed values, many new quotation marks, …)
• I did not rename variables

[laurinks]

Thanks for adding the variables, @lecfab ! Did you run make build? This is likely the reason why it cannot be merged yet. If it does not work on your end, I can do it and merge.