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, 2 insertions, 2 deletions

diff --git a/client/src/app/shared/form-validators/video-playlist-validators.ts b/client/src/app/shared/form-validators/video-playlist-validators.ts
index 63af637a3..3cddcaad2 100644
--- a/client/src/app/shared/form-validators/video-playlist-validators.ts
+++ b/client/src/app/shared/form-validators/video-playlist-validators.ts
@@ -1,6 +1,6 @@
 import { Validators, AbstractControl } from '@angular/forms'
 import { BuildFormValidator } from './form-validator.model'
-import { VideoPlaylistPrivacy } from '@shared/models'
+import { VideoPlaylistPrivacy, VideoPlaylistPrivacyType } from '@peertube/peertube-models'
 
 export const VIDEO_PLAYLIST_DISPLAY_NAME_VALIDATOR: BuildFormValidator = {
   VALIDATORS: [
@@ -42,7 +42,7 @@ export const VIDEO_PLAYLIST_CHANNEL_ID_VALIDATOR: BuildFormValidator = {
   }
 }
 
-export function setPlaylistChannelValidator (channelControl: AbstractControl, privacy: VideoPlaylistPrivacy) {
+export function setPlaylistChannelValidator (channelControl: AbstractControl, privacy: VideoPlaylistPrivacyType) {
   if (privacy.toString() === VideoPlaylistPrivacy.PUBLIC.toString()) {
     channelControl.setValidators([ Validators.required ])
   } else {