git: create an initial gitignore
git: create an initial gitignore

Signed-off-by: Thordur Bjornsson <d4e38dbaaeb7bccdb22d67af94290c3ed7fce216@secnorth.net>
Signed-off-by: Paul Moore <a027184a55211cd23e3f3094f1fdc728df5e0500@paul-moore.com>

mheon/libseccomp-golang,seccomp/libseccomp-golang,mvo5/libseccomp-golang