[CHORE] Implement growables for array types

[jaychia]

Growables are generally useful for abstracting "physical" operations such as:

1. Take
2. Broadcast
3. Filter

This will become much more important as we add new Array types (FixedSizeListArray, StructArray etc). These arrays can just implement their own Growable classes, and implementations for the physical kernels will be easy to implement.

Changes

1. Adds a new Growable<Arr> trait that is a growable to build the specified Arr
2. Adds a new GrowableArray trait which is implemented by DataArray and LogicalArray: these types can now create a growable using their associated ::make_growable functions
3. Refactors if_else to use the new growables, reducing quite a bit of code and nasty macro usage

[codecov]

Codecov Report

Merging #1287 (686f103) into main (671e340) will increase coverage by 0.03%.
Report is 1 commits behind head on main.
The diff coverage is n/a.

❗ Current head 686f103 differs from pull request most recent head de632e8. Consider uploading reports for the commit de632e8 to get more accurate results

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1287      +/-   ##
==========================================
+ Coverage   87.32%   87.35%   +0.03%     
==========================================
  Files          61       61              
  Lines        6049     6049              
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+ Hits         5282     5284       +2     
+ Misses        767      765       -2     

see 3 files with indirect coverage changes