Settings menu modularized.

Help text added to settings items.
Settings now saved to client file when changed.
Separated transformers settings and InferKit settings.
Reorganized model select list.

utils.py

@@ -0,0 +1,19 @@
+from threading import Timer
+
+def debounce(wait): 
+    def decorator(fun):
+        def debounced(*args, **kwargs):
+            def call_it():
+                fun(*args, **kwargs)
+ 
+            try:
+                debounced.t.cancel()
+            except AttributeError:
+                pass
+ 
+            debounced.t = Timer(wait, call_it)
+            debounced.t.start()
+ 
+        return debounced
+ 
+    return decorator