Script now returns after saving RDS files when in reporting mode.

- remove *explicit* flags for vintages and learning, essentially
switching those to TRUE by default.
- save and load RDS files to a subfolder in the output directory to
not clutter the output dir too much.
- add and group all RDS file save that are related to reporting.

edgeTrpLib, see b6f2a2c6.

Introduce the option to send output scripts for single runs to the cluster (comparison scripts will follow later)

Subsequent runs: do not save the timestamp to cfg$results_folder in RData files that are stored on REMIND's main folder. These files might be used to restart subsequent runs by hand. In this case the timestamp would cause the script to stop because the results folder already exists.

Delete lusweave output files after generating runtime.pdf

Refactoring start scripts: fix bug in sbatch command, remove scenario name from name of log.txt so the rs script can easily find it.

Refactoring start scripts: adapt coupling scripts, call SLURM directly without the detour via cmd files

This is part of a larger refactoring effort of the remind core. Here, code related to the trade of permits and primary energy carriers is moved from the core to the new module. Some renaming is required. For now only one module realization exists, 'standard', which corresponds exactly to what was in the core before. The results are not effected!

This is part of the larger refactoing of the core.

move scripts for magicc into the folder core/magicc, delete outdated script performance_test.R, integrate script submit_compare.cmd into multiComparison.R

Refactoring start scripts: - delete start_functions.R because all it's functions have been replaced by new ones
- fix bugs and correct formatting in other files

Refactoring start scripts: - moved the definition of the slurm strings from  submit() in submit.R to choose_submit() in start.R
- renamed the function choose_submit() to choose_slurmConfig() and moved it to the new file choose_slurmConfig.R

Refactoring: -start scripts (part 5): renamed submit_run(cfg) into submit.R(cfg), deleted conopt files