Add package bootstrap script

Signed-off-by: James Griffin <james@unsupervised.ca>

setup.sh

@@ -0,0 +1,8 @@
+#!/bin/bash
+
+mkdir $1
+
+echo "package $1" >> $1/day_$1.go
+echo "package $1" >> $1/day_$1_test.go
+touch $1/sample.txt
+touch $1/input.txt