Delivery local mode does not work as expected in mono repos

[tas50]

It looks like delivery local mode is really build around the concept of a single cookbook repository and there's some error messaging that doesn't entirely explain that.

Given a repo structure like this:

/Users/tsmith/repo/cookbooks/my_cookbook

I cannot run delivery local mode in the my_cookbook directory as expected. Even though chef generate cookbook created a .delivery directory with the project.toml delivery says there is no .delivery/project.toml file. That's because it looks for the .delivery directory where the .git directory is. It traverses up the tree until it finds the .git directory in the chef-repo itself and then of course it can't find the .delivery directory.

Problem 1: It should just use the .delivery directory we generate
Problem 2: The error message it provides is incorrect

Could not find the configuration file.
The .delivery/project.toml file was not found.

You can generate this file using the command:
	chef generate build-cookbook [NAME]

The error should give the full path to the toml it can't find.