Add rack role seeds

initializers/rack_roles.yml

@@ -0,0 +1,12 @@
+# - name: Role 1
+#   slug: role-1
+#   color: Pink
+# - name: Role 2
+#   slug: role-2
+#   color: Cyan
+# - name: Role 3
+#   slug: role-3
+#   color: Grey
+# - name: Role 4
+#   slug: role-4
+#   color: Teal