Build fails due to missing dependency to uvl parser

[bertilmuth]

I cloned the repo today and tried a maven build. It failed due to the following dependency missing:

  <dependency>
      <groupId>io.github.universal-variability-language</groupId>
      <artifactId>uvl-parser</artifactId>
      <version>0.5.0</version>
  </dependency>

Checking the versions of the UVL parser on Maven Central, it only lists versions up to 0.3:

https://mvnrepository.com/artifact/io.github.universal-variability-language/uvl-parser/versions

So this seems to be more of an issue with the uvl parser, but it makes this repo less accessible as well.