add option to create new devonfw-ide installation

[hohwille]

As a devonfw-ide user, I want a simple command to create a new devonfw-ide installation so that I can start a new project without manually downloading, extracting and setting up devonfw-ide again.

Suggestion:

devon ide create [«path»]

Will create and setup a new installation of devonfw-ide in the given «path».
If «path» is omitted, then . is assumed.

• If the given «path» does not exist, it will be created.
• Now the «path» exists but it should be empty. Otherwise an error should be raised or the user should have to confirm before setup continues.
• Like devon ide update scripts this would check for the latest version of devonfw-ide.
• Then it should download that latest version
• The latest downloaded version will be extracted to the new folder.
• Then the setup should be called in the new folder (devon ide setup - note: on Windows setup.bat does a few additional things. We could even check if we are on windows and call setup.bat via CMD but that is rather nice to have).

For acceptance criteria also follow our DoD.