Add additional temporary files to .gitignore

Adding a few more temporary files to .gitignore,
to make it easier to work within an IDE.
The .vscode file is already present,
so there is precedent for adding IDE files here.

Signed-off-by: Josh Lehan <krellan@google.com>
Change-Id: Ic5324a1e5df91a5861b0fca53d33a7c4e7723314
1 file changed