move ts own process to use chokidar

[nicoecheza]

Since we are now using sdk-commands as child process of other apps (creator-hub, etc), creating child processes of child processes seems to be having problems maintaining them alive when needed.
This avoids creating a new keepalive process when running tsc on the user's scene by using chokidar. The only gotcha is having to parse the tsconfig.json file so we can obtain the proper files to watch, so that's what the new getTypeScriptWatchPatterns function is doing.

Tested it inside and outside Electron app, having different configs inside the tsconfig.json file and seems to be doing a proper work.

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• The @dcl/sdk package can be tested in scenes by running

  npm install "https://sdk-team-cdn.decentraland.org/@dcl/js-sdk-toolchain/branch/rework/ts-watcher/dcl-sdk-7.7.6-13572819699.commit-49d9a76.tgz"

• To test with npx init

  export SDK_COMMANDS="https://sdk-team-cdn.decentraland.org/@dcl/js-sdk-toolchain/branch/rework/ts-watcher/dcl-sdk-commands-7.7.6-13572819699.commit-49d9a76.tgz"
  npx $SDK_COMMANDS init

• The @dcl/inspector package can be tested by visiting this url

  • Or by installing it via NPM

  npm install "https://sdk-team-cdn.decentraland.org/@dcl/js-sdk-toolchain/branch/rework/ts-watcher/@dcl/inspector/dcl-inspector-7.7.6-13572819699.commit-49d9a76.tgz"

• The /changerealm command to test test in-world

  /changerealm https://sdk-team-cdn.decentraland.org/ipfs/rework/ts-watcher-e2e
  

• You can preview this build entering:
  https://playground.decentraland.org/?sdk-branch=rework/ts-watcher