Added a new folder "Resources" in Tools/capp/Resources/Templates/Framework/. As the folder is empty be default for frameworks it contains a .gitignore file to be able to add it to git.
Motivation is to prevent (spelling) mistakes when manually creating a Resource folder for Frameworks (e.g. "Ressources").
Previously no default principal class was declared in Info.plist for a framework.
This commit declares the principal class to be the same as the main framework class created with capp gen -t Framework.