Master Issue

[emsesc]

• Edit manipulate-service to generate model previews to store in MySQL and customize images on demand #102

• Edit fetch-service to become mockup-service to customize user's uploaded images #103

• Create admin-service to accept new hats #104

• Create product-catalog to pull hat previews from MySQL #105

• Create Kafka broker + order/shipping service and checkout-service #101

• Edit frontend-service (commerce) to request hats from backend #100

• Edit gateway-service to route to everything new #107