Feat/plugin develop (#10926)

Fixes: FRMW-2865

In this PR we add support for developing a plugin in watch mode. During the file change, we re-compile the source code (incrementally), publishes the package, and updates the installations of the plugin. 

We are using `yalc` under the hood and it must be installed as a dev dependency in the plugin project and the main Medusa app.

packages/medusa/src/commands/plugin/develop.ts

@@ -0,0 +1,19 @@
+import * as yalc from "yalc"
+import { logger } from "@medusajs/framework/logger"
+import { Compiler } from "@medusajs/framework/build-tools"
+
+export default async function developPlugin({
+  directory,
+}: {
+  directory: string
+}) {
+  const compiler = new Compiler(directory, logger)
+  await compiler.developPluginBackend(async () => {
+    await yalc.publishPackage({
+      push: true,
+      workingDir: directory,
+      changed: true,
+      replace: true,
+    })
+  })
+}