New key-value mapping to simplify header decoding (& fix CI code check)

[philipp-baumann]

addresses #60

[philipp-baumann]

[philipp-baumann]

We now gracefully by encouraging development support :-)

[philipp-baumann]

@ThomasKnecht have tested the new key-map logic for all internal test files. We are successful on all, except the new FT-IR remote sensing device. You can ignore the ci code check warning for now. There seems to be an old cache because I forgot to merge the last pr merged in main (have forced in this branch).

[philipp-baumann]

Currently there is no other workaround than relying on classical pre-commit action instead of bot-like auto-fixing PRs via pre-commit-ci-lite => see also pre-commit-ci/issues#13 and lorenzwalthert/precommit#450

[philipp-baumann]

@ThomasKnecht FYI current main is now merged. CI runs now there, but just not yet in this PR. Locally this PR branch passes 💯

[philipp-baumann]

FYI I have pushed some more docs into main directly. Now mostly finished with describing return value (parsed and returned OPUS blocks. => see also https://spectral-cockpit.github.io/opusreader2/reference/parse_opus.html . Feel free to directly correct doc etc. here by pushing directly. Once this PR is merged I, I would

a) complete the docs of parse_opus() and transfer the description of output list to read_opus().

Then b) Also add support for the FT-IR remote sensing device for greenhouse gas measurements (new block types create_dataset()).

c) I'd add also some more nice parameter names for Bruker Tango (We cannot yet read all of the report fields from the OPUS QUANT2 module https://www.bruker.com/en/products-and-solutions/infrared-and-raman/opus-spectroscopy-software/quantification.html ; not super important (do own modeling and infrastructure anyways) but I vaguely remember you might have once expanded the header parsing algorithm right ;-)?).

=> Finally, my suggestion is that we bump from currently "dev" 0.0.0.9002 to to version 0.1.0 using "minor" and make a release on GH. @ThomasKnecht anything else to? Does that sound good to you?