Serialize mappings of properties of toric varieties and update QSMDB

[HereAround]

Based on #5196, which should be discussed/merged first.

Content of this PR

• Serialize map_from_character_lattice_to_torusinvariant_weil_divisor_group for toric varieties,
• Serialize map_from_torusinvariant_cartier_divisor_group_to_class_group for toric varieties,
• Serialize map_from_torusinvariant_cartier_divisor_group_to_picard_group for toric varieties,
• Serialize map_from_torusinvariant_cartier_divisor_group_to_torusinvariant_weil_divisor_group for toric varieties,
• Serialize map_from_torusinvariant_weil_divisor_group_to_class_group for toric varieties,
• It was forgotten to add the doc string of map_from_torusinvariant_cartier_divisor_group_to_class_group to the documentation markdown files. This addition is made in this PR.
• Computation of the above maps is improved with an eye towards Introduce class_group_with_map and picard_group_with_map #5064. Instead of saying both the above maps and some of their (co)domains, let us only save/serialize the maps and retrieve objects such as class group, picard group, torus invariant weil divisor group as their (co)domains.
• The above maps are computed for all QSM models, serialized and the QSM database is updated accordingly.

cc @antonydellavecchia: Splitting-off changes in #5064 as discussed.

[HereAround]

@antonydellavecchia This should be the final step before going back to #5064, where I will introduce class_group_with_map and then overhaul/update the serialization accordingly. Please take a look and let me know what you think.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 84.84%. Comparing base (5192e9a) to head (926cc16).

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #5198   +/-   ##
=======================================
  Coverage   84.83%   84.84%           
=======================================
  Files         710      710           
  Lines       95513    95513           
=======================================
+ Hits        81029    81035    +6     
+ Misses      14484    14478    -6     

Files with missing lines	Coverage Δ
src/Serialization/ToricGeometry.jl	100.00% <ø> (ø)

... and 2 files with indirect coverage changes

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