Perpendicular Baseline Harmonization with SearchAPI

[SpicyGarlicAlbacoreRoll]

Changed

• Baseline stacking no longer excludes products with missing state vectors from final stack, like SearchAPI

Added

• Adds warning when scenes in stack are missing state vectors, and logs baseline warnings with ASF_LOGGER

[codecov-commenter]

Codecov Report

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

Comparison is base (99a2966) 89.82% compared to head (c9cf2b2) 89.98%.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #248 +/- ## ========================================== + Coverage 89.82% 89.98% +0.15% ========================================== Files 54 54 Lines 2035 2046 +11 ========================================== + Hits 1828 1841 +13 + Misses 207 205 -2 ``` | [Flag](https://app.codecov.io/gh/asfadmin/Discovery-asf_search/pull/248/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=asfadmin) | Coverage Δ | | |---|---|---| | [unittests](https://app.codecov.io/gh/asfadmin/Discovery-asf_search/pull/248/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=asfadmin) | `89.98% <100.00%> (+0.15%)` | :arrow_up: | Flags with carried forward coverage won't be shown. [Click here](https://docs.codecov.io/docs/carryforward-flags?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=asfadmin#carryforward-flags-in-the-pull-request-comment) to find out more.

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