Cookiecutter: Fixes header and library search paths on Release

[misl6]

I noticed that the HEADER_SEARCH_PATHS and LIBRARY_SEARCH_PATHS used in the Release configuration are wrong.

I personally use a custom workspace, so I never noticed 🤐

[Cheaterman]

Hahaha, it's a bunch of huge catches you're doing these days! It's almost surprising it all worked before Xcode 12, hahaha... Thanks for that - I'm uploading my file in Debug mode for now (too many days of work spent on this, I'm tired and I have other things piling up), but it sure will be great when this is tested and merged :-) thanks again!

EDIT: Also « I personally use a custom workspace, so I never noticed 🤐 » makes me think it's good someone who actually knows these Xcode things takes a look at this ^^ most contributors (me included) are fairly novice at these things and kind of forced into doing it, hehehe, at least I know I am 🙂

[misl6]

The provided fix seems to work:
See #572 (comment)

[Zen-CODE]

Nice. Thanks :-)