[libc++][ranges] Implement ranges::mismatch

Implement `ranges::mismatch`

Reviewed By: Quuxplusone, ldionne, #libc

Spies: libcxx-commits, mgorny

Differential Revision: https://reviews.llvm.org/D117817

NOKEYCHECK=True
GitOrigin-RevId: c2cd15a6653197904e2cf8ffb40abc47770256a6
diff --git a/include/module.modulemap b/include/module.modulemap
index 1577c00..a08b82b 100644
--- a/include/module.modulemap
+++ b/include/module.modulemap
@@ -296,6 +296,7 @@
       module push_heap                { private header "__algorithm/push_heap.h" }
       module ranges_max_element       { private header "__algorithm/ranges_max_element.h" }
       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 remove                   { private header "__algorithm/remove.h" }
       module remove_copy              { private header "__algorithm/remove_copy.h" }