moved mkdir from amxmodx.inc to file.inc

plugins/include/amxmodx.inc

@@ -733,9 +733,6 @@ native require_module(const module[]);
 
 native is_amd64_server();
 
-/* Returns 0 on success, like the POSIX specification */
-native mkdir(const dirname[]);
-
 /* Returns plugin id searched by file/name.  Returns INVALID_PLUGIN_ID on failure. */
 native find_plugin_byfile(const filename[], ignoreCase=1);
 

plugins/include/file.inc

@@ -104,6 +104,10 @@ native filesize(const filename[], any:...);
 // operating systems.
 native rmdir(const path[]);
 
+/* Returns 0 on success, like the POSIX specification */
+native mkdir(const dirname[]);
+
+
 //Delete a file (delete_file macro)
 native unlink(const filename[]);