.gitignore: list *.orig and *.rej

Should prevent accidental check-in of patch artefacts.

Suggested-by: Mike Lothian <mike@fireburn.co.uk>
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Eric Engestrom <eric@engestrom.ch>

.gitignore

@@ -7,11 +7,13 @@
 *.log
 *.o
 *.obj
+*.orig
 *.os
 *.pc
 *.pdb
 *.pyc
 *.pyo
+*.rej
 *.so
 *.so.*
 *.sw[a-z]