feat(pricing, types, utils, medusa-sdk): Pricing Module Setup + Currency (#4860)

What:

- Setups the skeleton for pricing module
- Creates service/model/repository for currency model
- Setups types
- Setups DB
- Moved some utils to a common place

RESOLVES CORE-1477
RESOLVES CORE-1476

packages/pricing/src/initialize/index.ts

@@ -0,0 +1,31 @@
+import {
+  ExternalModuleDeclaration,
+  InternalModuleDeclaration,
+  MedusaModule,
+  MODULE_PACKAGE_NAMES,
+  Modules,
+} from "@medusajs/modules-sdk"
+import { IPricingModuleService, ModulesSdkTypes } from "@medusajs/types"
+import { moduleDefinition } from "../module-definition"
+import { InitializeModuleInjectableDependencies } from "../types"
+
+export const initialize = async (
+  options?:
+    | ModulesSdkTypes.ModuleServiceInitializeOptions
+    | ModulesSdkTypes.ModuleServiceInitializeCustomDataLayerOptions
+    | ExternalModuleDeclaration
+    | InternalModuleDeclaration,
+  injectedDependencies?: InitializeModuleInjectableDependencies
+): Promise<IPricingModuleService> => {
+  const serviceKey = Modules.PRICING
+
+  const loaded = await MedusaModule.bootstrap<IPricingModuleService>(
+    serviceKey,
+    MODULE_PACKAGE_NAMES[Modules.PRICING],
+    options as InternalModuleDeclaration | ExternalModuleDeclaration,
+    moduleDefinition,
+    injectedDependencies
+  )
+
+  return loaded[serviceKey]
+}