This is populating new commands and changes some of the relevant
documentation. This is very much a WIP and not ready to merge.

This actually covers all values we need to prompt for, but is in dire
need of a refactoring, and the GitHub clone logic needs to be
implemented.

The flow works, most edge cases covered. Still have some development
features that need to be pulled out/resolved.

Handles most cases, still need to clean out some debug logic and write
full test suite.

More tests needed to meet the coverage bar since there's a lot of new
code, but the existing tests work.

With dependency-manager required, cannot have go showing a None type for
that field.

Primarily, refactoring the different primary interactive threads into
different methods.

…o interactive-init

Windows compatibility check, essentially, and this commit also includes
a Black reformatting.

This enables us to properly test prompts and improves code
coverage. We also managed to entirely remove a code path (location
cannot currently be missing when going to interactive).

Remaining work is to improve unit test coverage of init templates.

It was incorrect to use 'takewhile', as it terminates as soon as there
is a failed check. For Java Maven this caused no templates to be
usable.

Now over the 95% threshold, so `make pr` is passing.

Slashes behave differently.

Checking integration test behavior.

Had a bug where the wrong executable name would lead to a premature
exit. This change fixes that.

Will better align with errors in place.

This is a WIP to fix breaking Windows integ tests.

This should have been part of the last commit.

If the shared directory doesn't exist, create it before cloning the
template git repo. This will need to be refactored as some layer code
does the same thing.

Init code assumed existence of shared directory, which is likely but not
guaranteed.