feat: add init hook

package.json

@@ -50,6 +50,9 @@
       "hello": {
         "description": "Say hello to the world and others"
       }
+    },
+    "hooks": {
+      "init": "./dist/hooks/init/init"
     }
   },
   "scripts": {

src/hooks/init/init.ts

@@ -0,0 +1,7 @@
+import {Hook} from '@oclif/core'
+
+const hook: Hook<'init'> = async function () {
+  console.log('Greetings! from plugin-test-esm-1 init hook')
+}
+
+export default hook

test/hooks/init/init.test.ts

@@ -0,0 +1,9 @@
+import {expect, test} from '@oclif/test'
+
+describe('hooks', () => {
+  test
+  .stdout()
+  .hook('init', {id: 'mycommand'})
+  .do(output => expect(output.stdout).to.contain('Greetings!'))
+  .it('shows a message')
+})