Add .gitignore.
Add .gitignore.

dylanninin/schema,Abd4llA/schema,skorokithakis/schema,bcaudell95/schema,a-saad/schema,Liwink/schema,jab/schema,werehuman/schema,AdamCanady/schema,kurtbrose/schema,lzjun567/schema,keleshev/schema,sjakobi/schema