#1695: Clone settings to temporary directory, analyse, and then move

[laim2003]

This PR fixes #1695

Implemented changes:

• When creating a new project (or updating a project with a broken settings directory), the settings or code-settings directory passed through ide create projectname <<git-url>> is pulled to a temporary directory. There, we check whether the repository is a valid settings or code-settings repository and if the check succeeds, we move it to the final location depending on the repo type (and symlink in case of a code-settings repo).
• Removed the --code flag of ide create as we now automatically detect the type of the repository.

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