Add a move function

[Nayte91]

Give a source (folder or file), a target (folder or file), and the function:

• detect all referenced usages of this source namespace/filepath,
• move the folder or the file,
• change the namespace,
• change the references in all the project files based on the new namespace/filepath.

[Nayte91]

• How to do with dynamic references?
• How to do with dependency injections?