Finish eGon100RE

[ClaraBuettner]

To solve this issue, the next PR should be merged in the given order:

1. Finish e gon100 re dsm cts ind #276
2. finish-eGon100RE-fix-cts-buildings #260
3. Fixes/#245 finish e gon100 re fix district heating #277
4. Fixes/#255 finish e gon100 re hydrogen bus etrago #282
5. Fixes/#256 finish e gon100 re gas arease gon2035 #283
6. fixes/#264-finish-eGon100RE-CH4Production #278
7. fixes/#265-finish-eGon100RE-CHP #279
8. Features/#237 finish e gon100 re windoff #286
9. Fixes/#267-finish-eGon100RE-power-plants #284
10. fixes/#271-finish-eGon100RE-heat-supply #289
11. fixes/#274-finish-eGon100RE-industrial_gas_demand-V2 #294
12. Fixes/#240-finish-eGon100RE-DLR #275
13. Features/integrate pypsa eur #122

Open issues from eGon-data:

• OCGT are missing in Germany in eGon100RE eGon-data#983 -> see OCGT generators are missing in eGon100RE #389
• Heat supply in eGon100RE eGon-data#713 -> heat supply is distributed now
• Integrate power plants for eGon100RE in etrago tables eGon-data#580 -> already solved in run-status2019-and-egon100 branch
• Offshore wind generators with control = 'Slack' in eGon100RE eGon-data#698 -> this problem is not there anymore
• Industrial electricity demand eGon100RE eGon-data#626 -> many things have changed in pypsa-eur and powerd-data, final check of loads still pending
• finish-eGon100RE-demand-regio-cts-ind #239
• finish-eGon100RE-DLR-failing #240
• finish-eGon100RE-industrial_gas_demand fails #274
• finish-eGon100RE-dataset-HouseholdDemands fails #273
• finish-eGon100RE-heat-supply-fails #271
• finish-eGon100RE-No-biomass-data #268
• finish-eGon100RE-power-plants fails #267
• finish-eGon100RE-CHP fails #265
• finish-eGon100RE-CH4Production fails #264
• finish-eGon100RE-GasAreaseGon2035 fails #256
• finish-eGon100RE-HydrogenBusEtrago #255
• finish-eGon100RE-GasNodesAndPipes #254
• finish-eGon100RE-fix-electrical_neighbours #252
• finish-eGon100RE-industrial_gas_demand fails #274
  finish-eGon100RE-fix-district-heating #245
  finish-eGon100RE-fix-cts-buildings #244
  finish-eGon100RE-DSM_cts_ind not working #243
  finish-eGon100RE-electrical-neighbours #241
  finish-eGon100RE-DLR-failing #240
  finish-eGon100RE-windoff #237
  Airflow not working when scenario is eGon100RE #232

[CarlosEpia]

The scenario eGon100RE was already finished. The validation process is taking place in #280. This Issue can be closed.