add samples for sequenceSubjectChangers also to api-infix

[robstoll]

Platform (all, jvm, js, android): all Extension (none, kotlin 1.3): none

Code related feature

We also want to provide samples for the infix api

Following the things you need to do:

• [ ] copy SequenceSubjectChangerSamples from fluent-api to api-infix, adjust imports ...api.fluent... to ...api.infix... and adjust the samples accordingly (always use the infix syntax, never the fluent).
  • [ ] take a look at existing Samples (e.g. ListFeatureExtractorSamples) in api-infix for how to format comments
• [ ] check that the sample in the KDoc Intellij is showing looks good (ALT+Mouse-click on function name)

Your first contribution?

• Write a comment I'll work on this if you would like to take this issue over. This way we get the chance to revise the description in case things have changed in the meantime, we might give you additional hints and we can assign the task to you, so that others do not start as well.
• See Your first code contribution for guidelines.
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[louetriTaha]

I'll work on this

[robstoll]

@louetriTaha do you need help?

[robstoll]

@simonNozaki you need to add a comment if you want to tackle this. This way I can sign the issue to you

[JordanllHarper]

Is this issue still available? I would be interested in giving it a go.

Edit: I'll work on this

[robstoll]

@JordanllHarper Yes, go ahead 👍