DDLX: Serialzie source code in .asddls file
DDLX: Serialzie source code in .asddls file

Before this commit is applied DDLX source code was recorded
in the xml file. We changed this so that now a separte .asddls
file is created. The change is downward compatible. Previously
recorded DDLX objects will show a diff the next time and the new
.asddls file has to be committed.
larshp/abapGit,EduardoCopat/abapGit,sbcgua/abapGit,larshp/abapGit,EduardoCopat/abapGit,sbcgua/abapGit