[libc++][format] Adds container adaptor formatters.

Implements parts of
- P2286R8 Formatting Ranges

Depends on D140653

Reviewed By: ldionne, #libc

Differential Revision: https://reviews.llvm.org/D141290

NOKEYCHECK=True
GitOrigin-RevId: 04d4f4b3d4e4fd608a3bc3fe387006435f04b61d
diff --git a/include/module.modulemap.in b/include/module.modulemap.in
index 81f503e..aa4da4d 100644
--- a/include/module.modulemap.in
+++ b/include/module.modulemap.in
@@ -839,6 +839,7 @@
     module __format {
       module buffer                          { private header "__format/buffer.h" }
       module concepts                        { private header "__format/concepts.h" }
+      module container_adaptor               { private header "__format/container_adaptor.h" }
       module enable_insertable               { private header "__format/enable_insertable.h" }
       module escaped_output_table            { private header "__format/escaped_output_table.h" }
       module extended_grapheme_cluster_table { private header "__format/extended_grapheme_cluster_table.h" }