Redirect log output from MAGICC7_AR6 reporting, fix code formatting

[tonnrueter]

Purpose of this PR

• All stdout/stderr output from climate_assessment python scripts (infilling/harmonization & climate emulation) is now redirected to log_climate.txt
• In climate_assessment_run.R: Fixed code indentation to make linter more cooperative

Type of change

(Make sure to delete from the Type-of-change list the items not relevant to your PR)

• [x] Bug fix
• [ ] Refactoring
• [ ] New feature
• [ ] Minor change (default scenarios show only small differences)
• [ ] Fundamental change
• [ ] This change requires a documentation update

Checklist:

• [x] My code follows the coding etiquette
• [x] I performed a self-review of my own code
• [x] I explained my changes within the PR, particularly in hard-to-understand areas
• [x] I checked that the in-code documentation is up-to-date
• [x] I adjusted the reporting in remind2 where it was needed
• [x] I adjusted forbiddenColumnNames in readCheckScenarioConfig.R in case the PR leads to deprecated switches
• [x] All automated model tests pass (FAIL 0 in the output of make test)
• [ ] The changelog CHANGELOG.md has been updated correctly

Further information (optional):

• Test runs are here:
• Comparison of results (what changes by this PR?):

[tonnrueter]

You're right, especially since we do want to support REMIND running on Windows. However, the current prevalence of this use case does not justify the time I'm putting in here. Sorry. Imma take a note of it, but this PR gets merged now. Thanks for pointing it out tho, I though we had this covered

Future reference for myself:

• Do we need all output from climate_assessement
• logtext <- system(whatever, intern = TRUE) did not have the desired effect of redirecting all output to logfile since climate_assessment calls further scripts whose output still managed to leaked to stdout
• On windows *>> <file> is supposed to redirect all output of a command running in PowerShell and Command Prompt and appended to <file>, however I wasn't able to construct an example case where this actually works (on windows, linux is fine)
• Link to dedicated development branch