let git tools ignore the class file changes

Change-Id: I48c325680de4a1673da16b993ee9dc3db7dd4020
diff --git a/examples/org.eclipse.graphiti.examples.filesystem.mm/.gitignore b/examples/org.eclipse.graphiti.examples.filesystem.mm/.gitignore
new file mode 100644
index 0000000..5e56e04
--- /dev/null
+++ b/examples/org.eclipse.graphiti.examples.filesystem.mm/.gitignore
@@ -0,0 +1 @@
+/bin
diff --git a/examples/org.eclipse.graphiti.examples.filesystem/.gitignore b/examples/org.eclipse.graphiti.examples.filesystem/.gitignore
new file mode 100644
index 0000000..5e56e04
--- /dev/null
+++ b/examples/org.eclipse.graphiti.examples.filesystem/.gitignore
@@ -0,0 +1 @@
+/bin