Add SQLite support for easy setup (#336)

* Modifies schema to allow SQLite as a DB driver. SQLite is preinstalled in most OSes allowing for minimal prerequisites in the installation process.

* Removes Redis dependency and replaces "real" redis instance with ioredis-mock this is not feature complete and errors are expected.

* Updates medusa new command to only ask for Postgres credentials if the starter template has database_type === "postgres" in medusa-config.js

* Small improvements to bin resolution

* Improvements to endpoint stability

packages/medusa/src/models/shipping-method.ts

@@ -10,6 +10,7 @@ import {
   Index,
 } from "typeorm"
 import { ulid } from "ulid"
+import { DbAwareColumn } from "../utils/db-aware-column"
 
 import { ClaimOrder } from "./claim-order"
 import { Order } from "./order"
@@ -81,7 +82,7 @@ export class ShippingMethod {
   @Column({ type: "int" })
   price: number
 
-  @Column({ type: "jsonb" })
+  @DbAwareColumn({ type: "jsonb" })
   data: any
 
   @BeforeInsert()