Install the local openmw.cfg template on Windows

The Windows global config path is really really dumb and the whole concept of having a global path on an OS where it's so easy to have different incompatible versions installed side-by-side (instead of a single canonical OS-wide OpenMW install from the system package manager) is really dumb, too.

We've therefore only used local `openmw.cfg`s on Windows for a very long time.

However, it appears that we were installing the global `openmw.cfg` template instead of the local template.
That's wrong and we shouldn't do it, so I've stopped it.

I've left the separate `openmw.cfg` and `openmw.cfg.install` in the build directory as that makes doing development for portable installs with the same build system as doing the development for the installer easier.

CMakeLists.txt

@@ -542,11 +542,16 @@ pack_resource_file(${OpenMW_SOURCE_DIR}/files/settings-default.cfg
 configure_resource_file(${OpenMW_SOURCE_DIR}/files/openmw.appdata.xml
     "${OpenMW_BINARY_DIR}" "openmw.appdata.xml")
 
-if (NOT APPLE)
+if (NOT WIN32 AND NOT APPLE)
     configure_resource_file(${OpenMW_SOURCE_DIR}/files/openmw.cfg.local
         "${OpenMW_BINARY_DIR}" "openmw.cfg")
     configure_resource_file(${OpenMW_SOURCE_DIR}/files/openmw.cfg
         "${OpenMW_BINARY_DIR}" "openmw.cfg.install")
+elseif (WIN32)
+    configure_resource_file(${OpenMW_SOURCE_DIR}/files/openmw.cfg.local
+        "${OpenMW_BINARY_DIR}" "openmw.cfg")
+    configure_resource_file(${OpenMW_SOURCE_DIR}/files/openmw.cfg.local
+        "${OpenMW_BINARY_DIR}" "openmw.cfg.install")
 else ()
     configure_file(${OpenMW_SOURCE_DIR}/files/openmw.cfg
         "${OpenMW_BINARY_DIR}/openmw.cfg")