new component: OutputAdapter

[masci]

Introduce a new OutputAdapter component to facilitate ease of the data flow between components within a pipeline. Its purpose is to transform the output from one component to align with the expected input of a subsequent component. This capability is particularly valuable when integrating components with mismatched interfaces, enhancing the pipeline design's modularity and flexibility.

Tasks

Beta Give feedback

1. The code is documented with docstrings and was merged in the main branch
2. Docs are published at https://docs.haystack.deepset.ai/
3. There is an example available to demonstrate the feature
4. The feature was announced through social media

[tholor]

@vblagoje From what I see we finished code + docstring but still miss a page in docs + example?

As we already have the feature and I think it's quite instrumental for building many non-standard pipelines, we should bring it over the finish line before 2.0.0.

Can you please add a page to the docs?

[vblagoje]

Here it is live now https://docs.haystack.deepset.ai/v2.0/docs/outputadapter
@bilgeyucel we can announce it when you get a chance - there are plenty examples around.

I can also prepare it but most likely next week 👍