Update .gitignore to remove patch/wiggle residue

`git patch` makes a .rej file for every rejection, and wiggle makes a .porig for every rejection fixed. This can add up to a lot of junk.

.gitignore

@@ -7,6 +7,10 @@
 *.ilk
 *.exp
 
+# Patch and wiggle related residdue
+*.rej
+*.porig
+
 # Precompiled Headers
 *.gch
 *.pch