devcontainer als Entwicklungsumgebung

[sidey79]

• Please check if the PR fulfills these requirements

• [ ] Tests for the changes have been added / modified (needed for for bug fixes / features)
• [ ] commandref has been added / updated (needed for bug fixes / features)

• What kind of change does this PR introduce? (Bug fix, feature, docs update, ...)

• [ ] Bugfix (please link issue)
• [ ] Feature enhancement
• [ ] Documentation update
• [ ] Unittest enhancement
• [x] other

• What is the current behavior? (You can also link to an open issue here, if this describes the current behavior)

Entwickler verwenden individuelle Entwicklungsumgebung, unterschiedliche Tools

• What is the new behavior (if this is a feature change)?

Entwickler können mit der Funktion devcontainer eine einheitliche Entwicklungsumgebung verwenden um weniger Aufwand für die Entwicklung zu haben.

• Does this PR introduce a breaking change? (What changes might users need to make in their application due to this PR?)

nein

• Other information: