Rework quickstart exclusions

The quickstart poms currently contain 2 entirely separate dependency exclusion mechanisms:

A) manual exclusions of dependencies (including transitive dependencies) via the artifactSet of the maven-shade-plugin
B) automatic inclusion by marking dependencies as <provided> with the build-jar profile

I propose removing A) entirely. By default, all dependencies will be included in the jar to allow execution in the IDE (which setting all dependencies to provided would not). To execute things on a cluster we now always refer to Option B), which is trivial to maintain and also reliable.