support peerDependenciesMeta

[fengmk2]

https://docs.npmjs.com/cli/v7/configuring-npm/package-json#peerdependenciesmeta

{
  "name": "tea-latte",
  "version": "1.3.5",
  "peerDependencies": {
    "tea": "2.x",
    "soy-milk": "1.2"
  },
  "peerDependenciesMeta": {
    "soy-milk": {
      "optional": true
    }
  }
}

[fengmk2]

peerDependencies WARNING ts-node@^10.9.1 requires a peer of @swc/wasm@>=1.2.50 but none was installed, packageDir: ~/git/github.com/eggjs/tegg/node_modules/.store/ts-node@10.9.1/node_modules/ts-node

[fengmk2]

npm/rfcs#221