Make the clip's auto-delays configurable

The options are ClipAutoraiseDelay, ClipAutolowerDelay, ClipAutoexpandDelay, ClipAutocollapseDelay

The default values are weird but merely represent the previously
hard-coded ones. They are repeated in Defaults/WindowMaker to avoid a
WPrefs crash (but it's a good idea to make them "visible", too)

WPrefs change coming up

WindowMaker/Defaults/WindowMaker.in

@@ -131,4 +131,8 @@
   MenuTitleBack = (solid, black);
   MenuTextBack = (solid, "rgb:aa/aa/aa");
   IconBack = (dgradient, "rgb:a6/a6/b6", "rgb:51/55/61");
+  ClipAutocollapseDelay = 1000;
+  ClipAutolowerDelay = 1000;
+  ClipAutoexpandDelay = 600;
+  ClipAutoraiseDelay = 600;
 }