Add local dev env things to gitignore
Add local dev env things to gitignore

* Mac's finder cache
* SASS cache
* direnv's .envrc and project directory when using `layout ruby`

tas50/supermarket,robbkidd/supermarket,chef/supermarket,chef/supermarket,juliandunn/supermarket,nellshamrell/supermarket,chef/supermarket,tas50/supermarket,juliandunn/supermarket,nellshamrell/supermarket,dpnl87/supermarket,dpnl87/supermarket,robbkidd/supermarket,nellshamrell/supermarket,chef/supermarket,dpnl87/supermarket,dpnl87/supermarket,juliandunn/supermarket,juliandunn/supermarket,nellshamrell/supermarket,chef/supermarket,robbkidd/supermarket,tas50/supermarket,tas50/supermarket,robbkidd/supermarket