Different repos for individual inputs broken in global mode

[Jakub Dundalek]

Which results in broken Edit URL for reitit example, which needs workaround to specify repo+branch as global option instead of auto-detecting it.

Call graph:

• print-namespace
  • print-var
    • print-var-impl
      • var-source

[Jakub Dundalek]

Implemented partial support for global mode git repo autodetection. The limitation for now is that the inputs must come from the same repo.

If a git repo cannot be detected, generation will continue without a crash and var source links will be omitted.