ENH: Roxar well picks support

[tnatt]

PR that adds the support of reading well_picks from RMS as xtgeo.Points, and writing them back. Closes #1108

• Support well_picks of type "fault" and "horizon" - specified through the category argument
  • no support of "zone" picks yet, it requires a bit more work as it needs entry and exit values for MD/TVD/X/Y.
• Support reading well pick attributes.
• Support creation of user defined attributes and modifying regular (non read-only) attribute values
• Create well pick set if not present in the project upon export

Also some refactoring of existing code was performed:

• Created separate functions for common functionality between roxar.well_picks and roxar.Points import/export. e.g applying pfilter or replacing undefined values in the dataframe
• Simplified and merged identical functions get_roxitem() and get_roxxyz() into one
• Restructured and renamed the two existing input validation checks

Other:

• Added new functionality - allow reading only a subset of point attributes by entering a list of attribute names.
• Fixed bug with entering category argument in to_roxar() and from_roxar() as list.
  • using category=["My folder", "My subfolder"] works now and is equal to category="My folder/My subfolder"
• Fixed bug where only columns after the three first were considered attributes. Resolves #1029
• Type hints added to most functions, however needs more work when we start type hinting the xyz module.

Example usage:

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Comparison is base (03624f7) 80.14% compared to head (a08dab0) 80.13%.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #1117 +/- ## ========================================== - Coverage 80.14% 80.13% -0.02% ========================================== Files 96 96 Lines 13575 13575 Branches 2193 2193 ========================================== - Hits 10880 10878 -2 - Misses 1963 1964 +1 - Partials 732 733 +1 ```

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[tnatt]

There is a lot of common functionality related to roxapi inside the xyz and regular_surface modules e.g. validating input, checking if the requested name/category exists in the RMS project and retrieving folders and objects from the project. I did not move this functionality now, but we should consider doing it in a later PR. Maybe the RoxUtils would be a nice place for it?

[jcrivenaes]

There is a lot of common functionality related to roxapi inside the xyz and regular_surface modules e.g. validating input, checking if the requested name/category exists in the RMS project and retrieving folders and objects from the project. I did not move this functionality now, but we should consider doing it in a later PR. Maybe the RoxUtils would be a nice place for it?

Sure, good point