Revision of the carbon capture rate

Describe the feature you'd like to see

The cc_fraction option in the config is (currently) only applied to SMR CC, other capture rates are retrieved from technology data which are based on https://www.sciencedirect.com/science/article/abs/pii/S0961953415000070?via%3Dihub. Interestingly, we also have a SMR CC in the technology data repo but don't use it. In "further description" (https://github.com/PyPSA/technology-data/blob/master/outputs/costs_2030.csv#L319) and capture rates between 54%-90% are mentioned.

Ideas for implementation/revision:

1. Retrieve the SMR CC carbon capture from technology data instead of the config (or is it intended to have a parameter sweep on that, which is obviously easier when kept in the config)
2. Revise the capture rate (54%-90%?), also interesting: https://ieaghg.org/exco_docs/2017-02.pdf and this article stating that

existing production plants for blue hydrogen only achieve separation rates of around 56% on average and could therefore ‘only’ reduce GHG emissions by around half compared to gray hydrogen.

I am happy to submit a PR for 1. and if an updated capture rate makes sense also for 2.

Start with config/config.default.yaml at the referenced cc_fraction setting and compare it with the SMR CC entry in technology-data/outputs/costs_2030.csv. Review the cited sources and determine whether capture rates should come from technology data, remain configurable for parameter sweeps, or be revised; done requires an agreed choice and corresponding updates.