able to partially parse and print ecore files

src/main/jastadd/XMI/XMIWriter.jadd

src/main/jastadd/ecore.relast

...main/java/de/tudresden/inf/st/e2j/parser/EcoreParser.java

...ava/de/tudresden/inf/st/e2j/parser/XMIParseException.java

src/main/resources/log4j2.xml

src/test/java/de/tudresden/inf/st/e2j/parser/ParserTest.java

src/test/resources/ecore/bigraph.ecore

src/test/resources/ecore/package.ecore