Generate fachschaft_print.pdf to remove second page on two-page

[JosefSchoenberger]

According to the MPIC Fachschaft's website, there should be no empty page after the cover page:

The file must contain a cover (without a blank page behind it)

I amended the Makefile to generate a fachschaft_print.pdf as well, which has the second, empty page stripped for two-page theses.

Let me know if you feel like fachschaft_print.pdf should instead be called mpic_fachschaft_print.pdf or something along the line.

[COM8]

Dat häcks grep -sq '^TUM-Dev LaTeX-Thesis-Template: twoside$$' build/main.log; 🤣.

Looks good. Thanks @JosefSchoenberger! The file name is OK.

[JosefSchoenberger]

Dat häcks grep -sq '^TUM-Dev LaTeX-Thesis-Template: twoside$$' build/main.log; 🤣.

Yeah, it's not elegant, I agree. To be fair though (and for short documentation), there is a reason:
I wanted to keep this as a post-processing step, as not everyone wants to print at the Fachschaft. However, LaTeX has very limited options for transferring information out of it – two, to be precise: In the logfile or by generating a new file entirely. Neither option is particularly nice, but at least the logfile does not clutter the build directory any more. That's why I chose this approach.

Anyway, thanks for merging!

[JosefSchoenberger]

Oh, also, I just realized I messed up: build/main.log → $(OUT)/$(FILE).log in the grep-line. IDK how much you care about it, but you might want to fix that.

(Not that changing these parameters is a good idea, the CI won't upload the correct artifacts anymore if you do so, but anyway, for completeness & cleanness sake...)