feat: [1941-Part3]: Introduce map_from_list scalar function

[rishvin]

Which issue does this PR close?

Addresses Part of #1941

Rationale for this change

Introduces map_from_list which converts a ListArray<Struct<K, V> to MapArray.

This PR has been split from original PR #2221. Please see that for details.

What changes are included in this PR?

A new map_from_list physical function.

How are these changes tested?

Added unit tests.

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 57.62%. Comparing base (f09f8af) to head (ded06b5).
⚠️ Report is 490 commits behind head on main.

Additional details and impacted files

@@             Coverage Diff              @@
##               main    #2328      +/-   ##
============================================
+ Coverage     56.12%   57.62%   +1.49%     
- Complexity      976     1297     +321     
============================================
  Files           119      147      +28     
  Lines         11743    13497    +1754     
  Branches       2251     2390     +139     
============================================
+ Hits           6591     7777    +1186     
- Misses         4012     4451     +439     
- Partials       1140     1269     +129     

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[comphead]

Sorry @rishvin it looks like some conflicts in there

[rishvin]

Sorry @rishvin it looks like some conflicts in there

Thanks @comphead , resolved the conflicts. Here also I force pushed to change the commit message from chore to feat.

[comphead]

I'm also reviewing this function in DF which might solve the same problem apache/datafusion#17456

[SparkApplicationMaster]

@comphead thanks for highlighting this PR
it has some interesting features like configuration values, curious if it can be achieved in runtime?
map_from_list solves map_from_entries spark function: https://spark.apache.org/docs/latest/api/sql/index.html#map_from_entries
actually the input StructArray is an array with two ListArray columns for keys and values
so map_from_entries can be solved reusing common code of map_from_arrays implementation
only StructArray unpacking is needed (it is a metadata-only operation)