Migrate server to ESM

Sorry for the very big commit that may lead to git log issues and merge
conflicts, but it's a major step forward:

 * Server can be faster at startup because imports() are async and we can
   easily lazy import big modules
 * Angular doesn't seem to support ES import (with .js extension), so we
   had to correctly organize peertube into a monorepo:
    * Use yarn workspace feature
    * Use typescript reference projects for dependencies
    * Shared projects have been moved into "packages", each one is now a
      node module (with a dedicated package.json/tsconfig.json)
    * server/tools have been moved into apps/ and is now a dedicated app
      bundled and published on NPM so users don't have to build peertube
      cli tools manually
    * server/tests have been moved into packages/ so we don't compile
      them every time we want to run the server
 * Use isolatedModule option:
   * Had to move from const enum to const
     (https://www.typescriptlang.org/docs/handbook/enums.html#objects-vs-enums)
   * Had to explictely specify "type" imports when used in decorators
 * Prefer tsx (that uses esbuild under the hood) instead of ts-node to
   load typescript files (tests with mocha or scripts):
     * To reduce test complexity as esbuild doesn't support decorator
       metadata, we only test server files that do not import server
       models
     * We still build tests files into js files for a faster CI
 * Remove unmaintained peertube CLI import script
 * Removed some barrels to speed up execution (less imports)

1 files changed, 0 insertions, 20 deletions

diff --git a/server/tests/fixtures/peertube-plugin-test-unloading/package.json b/server/tests/fixtures/peertube-plugin-test-unloading/package.json
deleted file mode 100644
index 7076d4b6f..000000000
--- a/server/tests/fixtures/peertube-plugin-test-unloading/package.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-  "name": "peertube-plugin-test-unloading",
-  "version": "0.0.1",
-  "description": "Plugin test (modules unloading)",
-  "engine": {
-    "peertube": ">=1.3.0"
-  },
-  "keywords": [
-    "peertube",
-    "plugin"
-  ],
-  "homepage": "https://github.com/Chocobozzz/PeerTube",
-  "author": "Chocobozzz",
-  "bugs": "https://github.com/Chocobozzz/PeerTube/issues",
-  "library": "./main.js",
-  "staticDirs": {},
-  "css": [],
-  "clientScripts": [],
-  "translations": {}
-}