feat: throw hilbish.exit hook (closes #99)

main.go

@@ -172,6 +172,7 @@ input:
 
 		if err == io.EOF {
 			// Exit if user presses ^D (ctrl + d)
+			hooks.Em.Emit("hilbish.exit")
 			break
 		}
 		if err != nil {

preload.lua

@@ -45,6 +45,7 @@ commander.register('cd', function (args)
 end)
 
 commander.register('exit', function()
+	bait.throw('hilbish.exit')
 	os.exit(0)
 end)