IntelliJ edition support not working properly

[hohwille]

With issue #452 and PR #460 we introduced general support for other IntelliJ editions like Ultimate.
However, the current approach does not work properly:
In devonfw-ide we have created advanced functions for download and installation of software. These rely on a specific tool and version that is downloaded for a given URL. For intellij we provide the same tool ID and version but with different URLs for community edition and ultimate edition. This is leading to various bugs:

Starting installation of intellij to /Users/hohwille/projects/ide/software/intellij from https://download-cf.jetbrains.com/idea/ideaIU-2019.2.dmg
Artifact already exists at /Users/hohwille/Downloads/intellij-2019.2-mac.dmg
To force update please delete the file and run again.

So the "already existing" dowload here was the community edition that gets the same filename.

Also if a project or user would change INTELLIJ_EDITION_TYPE after IntelliJ has already been setup, then devonfw-ide could not notice that anything needs to be updated or changed.

Further, there are advanced features like this https://github.com/devonfw/ide/blob/master/documentation/software.asciidoc#shared that will cause strange effect.

Therefore my suggestion is to add the edition to the logical version of the project that we manage internally in devonfw-ide to make it unique.