[C++][Compute][Python] Rename "project" kernel to "make_struct"

[asfimport]

The "project" compute Function is necessary for ARROW-11174. However it is not intended for direct use outside an Expression (where the correspondence to projection is not immediately obvious) so it may be preferable to do one/more of:

• rename the function to "wrap_struct" or similar so it does make sense outside Expressions
• ensure the function is not exposed to python/R bindings except through Expressions
• remove the function from the default registry

Reporter: Ben Kietzman / @bkietz
Assignee: Ben Kietzman / @bkietz

PRs and other links:

• GitHub Pull Request #10728

_{Note: This issue was originally created as ARROW-11206. Please see the migration documentation for further details.}

[asfimport]

Ben Kietzman / @bkietz:
@jorisvandenbossche

[asfimport]

Ben Kietzman / @bkietz:
Note: after ARROW-19230 projection will be handled by an ExecNode and will not require this compute function. At that time this should definitely no longer be named "project" and could probably be deleted

[asfimport]

Weston Pace / @westonpace:
I think MakeStruct is good and much clearer.  This caused plenty of confusion for me as well.  I doubt many python uses are using pyarrow.compute.project anyways since they probably specify it via the scanner or dataset options.

[asfimport]

Joris Van den Bossche / @jorisvandenbossche:
Issue resolved by pull request 10728
#10728