sttools: Introduce a new package for Smalltalk tooling helpers

This will hold non UI tools to help with tooling. This can be linters,
the converter, package related tools. Begin with moving parts of the
gst-convert code into this package.

2013-03-30  Holger Hans Peter Freyther  <holger@freyther.de>

	* configure.ac: Introduce the Tooling package.

2013-03-30  Holger Hans Peter Freyther  <holger@freyther.de>

	* Makefile.frag: Added.
	* Parser/SourceClass.st: Added from scripts/Convert.st.
	* Parser/SourceComments.st: Added from scripts/Convert.st.
	* Parser/SourceEntity.st: Added from scripts/Convert.st.
	* Parser/SourceEval.st: Added from scripts/Convert.st.
	* Parser/Loader.st: Added from scripts/Convert.st.
	* README: Added.
	* TODO: Added.
	* package.xml: Added.