Reorganize project. Add folder for shared code between backend/dashboard. Switch from jest to ava for tests.

backend/src/data/entities/AllowedGuild.ts

@@ -0,0 +1,17 @@
+import { Entity, Column, PrimaryColumn, CreateDateColumn } from "typeorm";
+
+@Entity("allowed_guilds")
+export class AllowedGuild {
+  @Column()
+  @PrimaryColumn()
+  id: string;
+
+  @Column()
+  name: string;
+
+  @Column()
+  icon: string;
+
+  @Column()
+  owner_id: string;
+}