Dedicated us inputs scenarios

[danielelerede-oet]

Changes proposed in this Pull Request

This PR builds on #172, and dedicated US inputs are further improved:

1. different scenarios are taken into account for electrolyzers and DAC costs, building on the nomenclature by the NREL ATB (Conservative, Moderate, Advanced)
2. inflation rates (generally applied to all cost values) are taken into account for values in EUR only, as the US-specific data should already consider adjustment for inflation.

Checklist

• Code changes are sufficiently documented; i.e. new functions contain docstrings and further explanations may be given in doc.
• Data source for new technologies is clearly stated.
• Newly introduced dependencies are added to environment.yaml (if applicable).
• A note for the release notes doc/release_notes.rst of the upcoming release is included.
• I consent to the release of this PR's code under the GPLv3 license.

[fneum]

This might now require a rebase.

[danielelerede-oet]

Hi @fneum , in response to your comment on inflation rate on #172, here the processing of costs expressed in USD is removed as the NREL ATB and ICCT dataset for electrolysis technologies already consider the adjustment for inflation. We agree anyway about the need for a US-dedicated dataset for inflation to be applied, for instance, on Fischer-Tropsch and DAC, whose values are not adjuster for inflation.