[libc++][format] Implements string escaping.

Implements parts of
- P2286R8 Formatting Ranges

Reviewed By: #libc, tahonermann

Differential Revision: https://reviews.llvm.org/D134036

NOKEYCHECK=True
GitOrigin-RevId: a48007355a03851f0f9bfcafd7a7865ca7467416
diff --git a/include/module.modulemap.in b/include/module.modulemap.in
index ddae895..a7e3ff0 100644
--- a/include/module.modulemap.in
+++ b/include/module.modulemap.in
@@ -744,6 +744,7 @@
       module buffer                          { private header "__format/buffer.h" }
       module concepts                        { private header "__format/concepts.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" }
       module format_arg                      { private header "__format/format_arg.h" }
       module format_arg_store                { private header "__format/format_arg_store.h" }