netipmid: add more files to .gitignore

This adds a few more files to the ignore list:

    vi swap files
    cscope artifacts
    patch orig and rej
    ~ temp copies

Change-Id: I33e1e6f9b378b87492846c1c52b3474f83eec4b5
Signed-off-by: Vernon Mauery <vernon.mauery@linux.intel.com>
diff --git a/.gitignore b/.gitignore
index e86ee6a..19e6062 100644
--- a/.gitignore
+++ b/.gitignore
@@ -21,3 +21,8 @@
 .project
 netipmid
 test-driver
+.*.sw*
+.cscope/
+*.orig
+*.rej
+*~