Refactored star.exe to clean up compiled obsolete files in a dedicated method, preparing for #1605.
Added the new unofficial option "sc-compile" to star.exe, and put it in the unofficial usage output. The implementation is yet to come. Part of #1605.
Implemented the actual functionality of the new --sc-compile option in star.exe. Part of #1605.
Extended star.exe not to fail an invocation with the --sc-compile flag because there was already such a file (now instead overwriting it).
Extended the source-code compiler of star.exe to generate debug information when compiling source-code input. Part of #1604.
Assured star.exe could properly handle the generation of pdb-files (cleaning them up, etc) if such was in fact produced. Part of #1604 and #1605.
Merge branch 'develop' into issue/1604-1605
Merge branch 'issue/1604-1605' into develop. Fixes #1604. Fixes #1605.