Support hierarchical (with owner) or flat repository directory layout

[jcansdale]

Remember the repository directory and layout after a user clones a repository. This mirrors a similar feature which has been used for a long time in GitHub Desktop. It means users don't need to discover the default clone location directory option.

What this PR does

• Infer and store the default clone directory after cloning
• Infer and store the default directory layout after cloning (flat or owner/repositoryName)
• Fix broken PackageSettingsGen.tt file

Inferring Directory Layout

• If a user clones https://github.com/jcansdale/repo_name into C:\Source\GitHub\repo_name, infer a default directory of C:\Source\GitHub and a flat directory layout
• If a user clones https://github.com/jcansdale/repo_name into C:\Source\GitHub\jcansdale\repo_name, infer a default directory of C:\Source\GitHub and a directory layout that includes the repository owner
• Update the name or owner/name component of the local path whenever a different repository is selected (or edited)

How to test

...

Fixes #2428