Expose the C++ event queue to python via the python function

m5.internal.event.create().  It takes a python object and a
Tick and calls process() when the Tick occurs.

--HG--
extra : convert_revision : 5e4c9728982b206163ff51e6850a1497d85ad7a3

src/python/SConscript

@@ -107,6 +107,7 @@ def swig_it(basename):
 
 swig_it('main')
 swig_it('debug')
+swig_it('event')
 
 # Action function to build the zip archive.  Uses the PyZipFile module
 # included in the standard Python library.