[libc++][ranges] Implement ranges::transform

Reviewed By: ldionne, var-const, #libc

Spies: libcxx-commits, mgorny

Differential Revision: https://reviews.llvm.org/D122173

NOKEYCHECK=True
GitOrigin-RevId: 3ba8548c8e04bb301c4243887362c54bfbd4af8b
diff --git a/include/module.modulemap b/include/module.modulemap
index 10e944a..aaedf4d 100644
--- a/include/module.modulemap
+++ b/include/module.modulemap
@@ -303,6 +303,7 @@
       module ranges_min_element       { private header "__algorithm/ranges_min_element.h" }
       module ranges_mismatch          { private header "__algorithm/ranges_mismatch.h" }
       module ranges_swap_ranges       { private header "__algorithm/ranges_swap_ranges.h" }
+      module ranges_transform         { private header "__algorithm/ranges_transform.h" }
       module remove                   { private header "__algorithm/remove.h" }
       module remove_copy              { private header "__algorithm/remove_copy.h" }
       module remove_copy_if           { private header "__algorithm/remove_copy_if.h" }