[RTL] Implement locale functions/tables

The locale table is currently hardcoded in rtl. On Vista+ (and Wine) this table is part of locale.nls, but we don't have that yet.

Author: tkreuzer

sdk/lib/rtl/CMakeLists.txt

@@ -57,6 +57,7 @@ list(APPEND SOURCE
     image.c
     interlck.c
     largeint.c
+    locale.c
     luid.c
     memstream.c
     message.c