Import dtracetoolkit into cddl/contrib

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+Python - DTracing Python
+
+   These scripts trace the Python programming language, and require a version
+   of Python which has been built with DTrace probes.
+
+   The Python DTrace provider was originally written by John Levon, and
+   was integrated into Solaris Nevada in build 65. If you are on a different
+   OS with DTrace and would like to use these scripts, you could download
+   Python and the Python DTrace provider patch listed in the comments here,
+
+	http://blogs.sun.com/levon/entry/python_and_dtrace_in_build
+
+   You will need patch and build Python for these probes to work.
+   Or, check if a pre-built package is available someone on opensolaris.org.
+
+   Since the DTrace Python provider may be developed further, there is a chance
+   that it has changed slightly by the time you are reading this, causing
+   these scripts to either break or behave oddly. Firstly, check for newer
+   versions of the DTraceToolkit; if it hasn't been updated and you need
+   to use these scripts immediately, then updating them shouldn't take
+   too long. The following was the state of the provider when these scripts
+   were written - check for changes and update the scripts accordingly,
+
+	provider python {
+	    probe function-entry(file, subroutine, lineno)
+	    probe function-return(file, subroutine, lineno)
+	};
+