Update IO to new LEGEND metadata format

[fhagemann]

There were some more format changes to the metadata files which cause the current version of LegendGeSim.jl to throw errors when reading files in the new format.

I updated the IO of LEGEND metadata files by incorporating the following changes:

• Boreholes are defined with height instead of gap
• The top.outer taper was renamed to top taper
• The top.inner taper was renamed to borehole taper
• The bottom.outer taper was renamed to bottom taper
• The contact was renamed to pp_contact
• Boreholes of icpc detectors and coax detectors are parsed differently due to differences in geometry
• Contacts for coax are parsed differently due to differences in geometry

I again assume the tests to fail because we might also need to update the legend-testdata.

[oschulz]

Can we use the new diode metadata in legend-testdata (https://github.com/legend-exp/legend-testdata/tree/main/data/legend/metadata/hardware/detectors/germanium/diodes) ?

[fhagemann]

Yes that should be fine

[oschulz]

Yes that should be fine

Can you try, if you find a free moment?

[codecov[bot]]

Codecov Report

Patch coverage: 69.90% and project coverage change: +1.64 :tada:

Comparison is base (8a460ea) 26.43% compared to head (b76b0c0) 28.07%.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #27 +/- ## ========================================== + Coverage 26.43% 28.07% +1.64% ========================================== Files 18 19 +1 Lines 681 691 +10 ========================================== + Hits 180 194 +14 + Misses 501 497 -4 ``` | [Impacted Files](https://app.codecov.io/gh/legend-exp/LegendGeSim.jl/pull/27?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=legend-exp) | Coverage Δ | | |---|---|---| | [src/legend\_detector\_to\_ssd.jl](https://app.codecov.io/gh/legend-exp/LegendGeSim.jl/pull/27?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=legend-exp#diff-c3JjL2xlZ2VuZF9kZXRlY3Rvcl90b19zc2Quamw=) | `71.25% <69.90%> (+4.16%)` | :arrow_up: | ... and [1 file with indirect coverage changes](https://app.codecov.io/gh/legend-exp/LegendGeSim.jl/pull/27/indirect-changes?src=pr&el=tree-more&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=legend-exp)

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