gitignore: add a couple more tests

Signed-off-by: Alexander Golubev <fatzer2@gmail.com>
(cherry picked from commit 8e4edc5883)

.gitignore

@@ -14,7 +14,10 @@ Makefile
 # Feel free to add PR any additions to this list you see fit
 
 /config.tests/unix/endian/endiantest
+/config.tests/unix/ipv6/ipv6test
+/config.tests/unix/largefile/largefiletest
 /config.tests/unix/ptrsize/ptrsizetest
+/config.tests/unix/stl/stltest
 /examples/aclock/aclock
 /examples/action/action
 /examples/action/toggleaction/toggleaction