Glows - second flag

[laspsandoval]

This pull request enhances the GLOWS L1b data processing by improving how sky regions are flagged for exclusion and updating related tests and flag definitions. The main update is the introduction of a new method to simultaneously flag bins close to UV sources and bins inside excluded sky regions, allowing for more precise masking during data processing. The changes also update the flag enumeration and refactor tests to use the new method.

Flagging improvements:

• Added the flag_uv_and_excluded method to HistogramL1B, which returns two boolean masks: one for bins close to UV sources and one for bins inside excluded sky regions, replacing the previous flag_uv_source method. [1] [2]
• Updated _compute_histogram_flag_array to use the new flag_uv_and_excluded method, now correctly populating the "inside excluded region" flag row. [1] [2]

Flag definition updates:

• Added the IS_INSIDE_EXCLUDED_REGION flag to the GLOWSL1bFlags enum in imap_processing/quality_flags.py for marking bins inside excluded regions.

Test refactoring:

• Refactored all relevant tests to patch and use flag_uv_and_excluded instead of flag_uv_source, ensuring test coverage for both UV source proximity and excluded region masking. [1] [2] [3] [4] [5] [6] [7] [8]
• Improved assertions in tests to validate the shapes and counts of flagged bins for both UV sources and excluded regions. [1] [2]

Mock data improvements:

• Updated mock ancillary exclusions in conftest.py to provide deterministic longitude and latitude values for excluded regions, improving test reliability.

[maxinelasp]

Looks good - just one suggestion!

[maxinelasp]

Addresses part of ticket #2721