add guide to create first devon4quarkus application

[EduardKrieger]

Watch https://github.com/devonfw/devon4quarkus/pull/26

PR will be closed when Quarkus Templates is merged. Building native image was extracted to another PR

[GuentherJulian]

Also add your guide to the devon4j.asciidoc and the _Sidebar.asciidoc files, so that the guide is displayed on the website and the wiki

[GuentherJulian]

I think we have to refactor this guide once again. We should pay attention to the things that Jörg mentioned in today's meeting:

• Use existing guides wherever possible, so that we avoid duplication
• Try to write guides in a general manner and only write specific guides when this is really unavoidable

There are many parts that are mentioned in the official Quarkus guide. Therefore we can remove most of this parts and add only additional or really important stuff not described in the guide. There are also parts that are not really Quarkus specific. For example the code snippets or the part about installing GraalVM (with Spring Native native compilation will also be available for spring in future).

[lilliCao]

will be closed with #456 and #429

[GuentherJulian]

will be closed with #456 and #429

Closed with merging of the above mentioned PRs