[C++] Simplify transitive component dependencies

[asfimport]

In the C++ build system, we are handling relationships between optional components in an ad hoc fashion

arrow/cpp/CMakeLists.txt

Line 266 in d5ba83e

if(ARROW_BUILD_TESTS OR ARROW_BUILD_BENCHMARKS)

This doesn't seem ideal.

As discussed on the mailing list, I suggest declaring dependencies in a Python data structure and then generating and checking in a .cmake file that can be included. This will be a big easier than maintaining this on an ad hoc basis.

Reporter: Wes McKinney / @wesm
Assignee: Kouhei Sutou / @kou

PRs and other links:

• GitHub Pull Request #14224

_{Note: This issue was originally created as ARROW-6858. Please see the migration documentation for further details.}

[asfimport]

Yibo Cai / @cyb70289:
Issue resolved by pull request 14224
#14224