Ignore temporally added files from build

Signed-off-by: Alexander Diewald <diewald@fortiss.org>

.gitignore

 **/target/
 /workspace/
+bundles/.project
+bundles/.settings/
+bundles/emf-generator/.project
+bundles/emf-generator/.settings/
+features/.project
+features/.settings/
+products/.project
+products/.settings/
+releng/.project
+releng/.settings/
+releng/org.fortiss.af3.update/.project
+releng/org.fortiss.af3.update/.settings/
+releng/org.fortiss.tooling.update/.project
+releng/org.fortiss.tooling.update/.settings/
+tests/.project
+tests/.settings/
+.settings/
 .log