BGE debug API and actuator

This patch adds some new debug methods to the KX_GameObject for manually adding the debug list and bge.render for controlling the debug visualization.
It also adds a new debug actuator, which allows to control the same functions.

This patch is a updated version of T33701.

Thread on Blenderartists:
http://blenderartists.org/forum/showthread.php?264745-Debug-proerties-for-added-objects-patch&p=2256018&viewfull=1#post2256018

Reviewers: moguri

Reviewed By: moguri

Differential Revision: https://developer.blender.org/D635

doc/python_api/rst/bge.render.rst

@@ -301,6 +301,34 @@ Functions
 
    Disable the motion blur effect.
 
+.. function:: showFramerate(enable)
+
+   Show or hide the framerate.
+
+   :type enable: boolean
+
+.. function:: showProfile(enable)
+
+   Show or hide the profile.
+
+   :type enable: boolean
+
+.. function:: showProperties(enable)
+
+   Show or hide the debug properties.
+
+   :type enable: boolean
+
+.. function:: autoDebugList(enable)
+
+   Enable or disable auto adding debug properties to the debug list.
+
+   :type enable: boolean
+
+.. function:: clearDebugList()
+
+   Clears the debug property list.
+
 .. function:: setVsync(value)
 
    Set the vsync value