Add RemoveComponents example to demo 'infinite' system bug

[mgi388]

Description

When you use AudioFileEndBehavior::RemoveComponents, the system that actually handles the removal of the components loops infinitely. To repro, run the example and look in the terminal at the 'infinite' log entry.

The removal code removes AudioFileBundle but the query that the system uses queries for AudioHandle<AudioFileHandle>, and that's not a part of AudioFileBundle therefore the query always matches.

I think the logic error is that the removal code assumes that removing AudioFileBundle is enough, because that's the minimal set of components callers need to add to an entity to make it play audio audio. However, bevy-kira-components can internally add more components. In this case it adds AudioHandle:

bevy-kira-components/src/sources/mod.rs

Line 170 in d9bd5ab

commands.entity(entity).insert(AudioHandle(handle));

Therefore I think one solution is that the removal code just needs to be aware of all of the extra components it may add and one fix looks like this:

commands
  .entity(entity)
  .remove::<AudioFileBundle>()
  .remove::<AudioHandle<AudioFileHandle>>();

This seems to be in line with the original goal of RemoveComponents which is to make the entity look how it looked before the caller added AudioFileBundle i.e. the caller is really asking bevy-kira-components "please: remove all the audio components".

P.S. It was easier to just push the repro example as a PR than create a new issue and I also thought that if it was desired we could keep this example, and once the bug is fixed we can enable the on_audio_file_removed to demonstrate how you can change sounds once the previous sound has finished playing.