[5.1.0] cherrypick subpackages support#14780

Merged

Wyverald merged 4 commits intobazelbuild:release-5.1.0from katre:5.1.0-subpackages

Feb 14, 2022

+1,674-471

Commits on Feb 10, 2022

Split ConfiguredAttributeMapper into a new build target.
katre
committed
Part 1 of the Implementation for new 'subpackages()` built-in helper function.

kkress
authored and
katre
committed
Part 2 Implementation for new 'subpackages()` built-in helper function.

kkress
authored and
katre
committed
Fix some typographical errors in the 'subpackages' docs.

Googler
authored and
katre
committed